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Cochrane Database of Systematic Reviews

Técnicas de resección y ablación del endometrio para el sangrado menstrual abundante

Information

DOI:
https://doi.org/10.1002/14651858.CD001501.pub5Copy DOI
Database:
  1. Cochrane Database of Systematic Reviews
Version published:
  1. 22 January 2019see what's new
Type:
  1. Intervention
Stage:
  1. Review
Cochrane Editorial Group:
  1. Cochrane Gynaecology and Fertility Group

Copyright:
  1. Copyright © 2019 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

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Authors

  • Magdalena Bofill Rodriguez

    Department of Obstetrics and Gynaecology, University of Auckland, Auckland, New Zealand

  • Anne Lethaby

    Correspondence to: Department of Obstetrics and Gynaecology, University of Auckland, Auckland, New Zealand

    [email protected]

  • Mihaela Grigore

    Grigore T. Popa University of Medicine and Pharmacy, Iasi, Romania

  • Julie Brown

    Auckland, New Zealand

  • Martha Hickey

    The University of Melbourne, The Royal Women's Hospital, Melbourne, Australia

  • Cindy Farquhar

    Department of Obstetrics and Gynaecology, University of Auckland, Auckland, New Zealand

Contributions of authors

For the 2018 update:

Magdalena Bofill performed selection of trials, data extraction, and data entry and prepared all versions of drafts and the final version of the review for comments from the other review authors.

Anne Lethaby performed selection of trials and commented on all versions of drafts and the final version of the review.

Mihaela Grigore performed selection of trials and data extraction.

Julie Brown performed selection of trials and data extraction and checked data entry; she also commented on all versions of drafts and the final version of the review.

Cindy Farquhar and Martha Hickey contributed clinical knowledge and commented on the final version of the review.

All review authors approved the final version.

Jane Marjoribanks helped update the search for the 2013 update.

Josien Penninx performed independent data extraction and assessment of risk of bias for the 2009 and 2013 updates and commented on the final version of the review.

Julie Brown performed independent selection of trials for the 2009 update.

Anne Lethaby wrote the original protocol, searched for relevant trials, assessed trials for eligibility for inclusion, extracted data from the included trials, assessed trials for risk of bias, compared independent data extraction and clarified points of disagreement, entered data, and wrote and commented on the final review (excluding the discussion and conclusion).

Martha Hickey commented on the final list of included trials, extracted data from the included trials for earlier versions of the review, wrote the discussion and conclusion, and commented on the draft of the protocol and an earlier version of the full review.

Ray Garry commented on the final draft of an earlier version of the review.

Sources of support

Internal sources

  • No sources of support supplied

External sources

  • UK NHS, Other.

    The update in 2009 was funded by Dept of Health (England) Incentive Scheme 2008

Declarations of interest

MB, AL, CF, MG and JB did not report any conflicts of interest.

Acknowledgements

The authors of the 2018 update of this review thank Dr Jane Thomas and Dr Shantini Paranjothy for providing peer review comments. They also thank Marian Showell (Information Specialist) and Helen Nagels (Managing Editor) at the Cochrane Gynaecology and Fertility Group's editorial base for their time and support, and Dolores Matthews for comprehensive copy editing of their draft. 

The authors of the 2013 review acknowledge and thank the Cochrane Menstrual Disorders and Subfertility Group for extensive support in the preparation of this review. Special thanks are due to Shauna Sylvester, Sarah Hetrick, Michelle Proctor, Jane Clarke, and Helen Nagels (Managing Editors during the lifecycle of this review); Sue Furness, Ruth Withers, and Marian Showell (Trials Search Co‐ordinators or Information Specialists); Neil Johnson (Editor); and Sue Hall (who provided secretarial assistance). The review authors also thank Amy Goodwin, Manager of Clinical Research, Gynecare, for extra data and for answering queries on the Meyer trial; authors from some of the other trials (Abbott 2003; Boujida 2002; Perino 2004; van Zon‐Rabelink 2003); and Joerg Neumann for translating relevant sections of the Romer trial. The review authors are also indebted to Sarah Hetrick of the Australasian Cochrane Centre, who helped with update searching in 2004, as well as extraction of data and addition of entries to the Characteristics of included studies.

Version history

Published

Title

Stage

Authors

Version

2019 Jan 22

Endometrial resection and ablation techniques for heavy menstrual bleeding

Review

Magdalena Bofill Rodriguez, Anne Lethaby, Mihaela Grigore, Julie Brown, Martha Hickey, Cindy Farquhar

https://doi.org/10.1002/14651858.CD001501.pub5

2013 Aug 30

Endometrial resection and ablation techniques for heavy menstrual bleeding

Review

Anne Lethaby, Josien Penninx, Martha Hickey, Ray Garry, Jane Marjoribanks

https://doi.org/10.1002/14651858.CD001501.pub4

2009 Oct 07

Endometrial resection / ablation techniques for heavy menstrual bleeding

Review

Anne Lethaby, Martha Hickey, Ray Garry, Josien Penninx

https://doi.org/10.1002/14651858.CD001501.pub3

2009 Jul 08

Endometrial destruction techniques for heavy menstrual bleeding

Review

Anne Lethaby, Martha Hickey, Ray Garry

https://doi.org/10.1002/14651858.CD001501.pub2

2002 Apr 22

Endometrial destruction techniques for heavy menstrual bleeding

Review

Anne Lethaby, Martha Hickey

https://doi.org/10.1002/14651858.CD001501

Differences between protocol and review

In December 2008, we changed the title from "Endometrial destruction techniques for heavy menstrual bleeding" to "Endometrial resection and ablation techniques for heavy menstrual bleeding".

In 2018, we divided the complication rate into major and minor categories to distinguish common adverse effects of surgery such as nausea and vomiting from more serious post‐procedure complications.

Keywords

MeSH

PICOs

Population
Intervention
Comparison
Outcome

The PICO model is widely used and taught in evidence-based health care as a strategy for formulating questions and search strategies and for characterizing clinical studies or meta-analyses. PICO stands for four different potential components of a clinical question: Patient, Population or Problem; Intervention; Comparison; Outcome.

See more on using PICO in the Cochrane Handbook.

Study flow diagram.
Figures and Tables -
Figure 1

Study flow diagram.

Methodological quality summary: review authors' judgements about each methodological quality item for each included study.
Figures and Tables -
Figure 2

Methodological quality summary: review authors' judgements about each methodological quality item for each included study.

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.
Figures and Tables -
Figure 3

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.

Funnel plot of comparison: 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, outcome: 18.2 Bleeding ‐ amenorrhoea at 12 months (final plot).
Figures and Tables -
Figure 4

Funnel plot of comparison: 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, outcome: 18.2 Bleeding ‐ amenorrhoea at 12 months (final plot).

Funnel plot of comparison: 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, outcome: 18.4 Satisfaction rate at 1 year follow‐up (final plot).
Figures and Tables -
Figure 5

Funnel plot of comparison: 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, outcome: 18.4 Satisfaction rate at 1 year follow‐up (final plot).

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 1 Bleeding ‐ blood loss (mL) at 6 months.
Figures and Tables -
Analysis 1.1

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 1 Bleeding ‐ blood loss (mL) at 6 months.

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 2 Bleeding.
Figures and Tables -
Analysis 1.2

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 2 Bleeding.

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 3 Rate of satisfaction at 12 months (very/moderately).
Figures and Tables -
Analysis 1.3

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 3 Rate of satisfaction at 12 months (very/moderately).

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 4 Duration of operation (minutes).
Figures and Tables -
Analysis 1.4

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 4 Duration of operation (minutes).

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 5 Operative difficulties.
Figures and Tables -
Analysis 1.5

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 5 Operative difficulties.

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 6 Good general health.
Figures and Tables -
Analysis 1.6

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 6 Good general health.

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 7 Improvement in menstrual symptoms.
Figures and Tables -
Analysis 1.7

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 7 Improvement in menstrual symptoms.

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 8 Complication rate: major complications.
Figures and Tables -
Analysis 1.8

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 8 Complication rate: major complications.

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 9 Complication rate: minor complications.
Figures and Tables -
Analysis 1.9

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 9 Complication rate: minor complications.

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 10 Requirement for further surgical treatment (within 12 months).
Figures and Tables -
Analysis 1.10

Comparison 1 Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation), Outcome 10 Requirement for further surgical treatment (within 12 months).

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 1 Bleeding ‐ amenorrhoea rate at 12 months' follow‐up.
Figures and Tables -
Analysis 2.1

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 1 Bleeding ‐ amenorrhoea rate at 12 months' follow‐up.

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 2 Bleeding ‐ PBAC score at 12 months.
Figures and Tables -
Analysis 2.2

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 2 Bleeding ‐ PBAC score at 12 months.

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 3 Rate of satisfaction at 12 months (very/moderately).
Figures and Tables -
Analysis 2.3

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 3 Rate of satisfaction at 12 months (very/moderately).

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 4 Duration of operation (minutes).
Figures and Tables -
Analysis 2.4

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 4 Duration of operation (minutes).

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 5 Operative difficulties.
Figures and Tables -
Analysis 2.5

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 5 Operative difficulties.

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 6 Complication rate: major complications.
Figures and Tables -
Analysis 2.6

Comparison 2 Vaporising electrode ablation (first generation) versus TCRE (first generation), Outcome 6 Complication rate: major complications.

Comparison 3 Rollerball (first generation) versus TCRE (first generation), Outcome 1 Duration of operation (minutes).
Figures and Tables -
Analysis 3.1

Comparison 3 Rollerball (first generation) versus TCRE (first generation), Outcome 1 Duration of operation (minutes).

Comparison 3 Rollerball (first generation) versus TCRE (first generation), Outcome 2 Complication rate: major complications.
Figures and Tables -
Analysis 3.2

Comparison 3 Rollerball (first generation) versus TCRE (first generation), Outcome 2 Complication rate: major complications.

Comparison 3 Rollerball (first generation) versus TCRE (first generation), Outcome 3 Requirement for further surgery.
Figures and Tables -
Analysis 3.3

Comparison 3 Rollerball (first generation) versus TCRE (first generation), Outcome 3 Requirement for further surgery.

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 1 Bleeding ‐ amenorrhoea rate.
Figures and Tables -
Analysis 4.1

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 1 Bleeding ‐ amenorrhoea rate.

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 2 Rate of satisfaction.
Figures and Tables -
Analysis 4.2

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 2 Rate of satisfaction.

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 3 Duration of operation.
Figures and Tables -
Analysis 4.3

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 3 Duration of operation.

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 4 Complication rate: major complications.
Figures and Tables -
Analysis 4.4

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 4 Complication rate: major complications.

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 5 Complication rate: minor complications.
Figures and Tables -
Analysis 4.5

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 5 Complication rate: minor complications.

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 6 Requirement for further surgery rate (hysterectomy only).
Figures and Tables -
Analysis 4.6

Comparison 4 Thermal laser (second generation) versus TCRE (first generation), Outcome 6 Requirement for further surgery rate (hysterectomy only).

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 5.1

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 1 Bleeding.

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 2 Rate of satisfaction.
Figures and Tables -
Analysis 5.2

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 2 Rate of satisfaction.

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 3 Proportion given local rather than general anaesthesia.
Figures and Tables -
Analysis 5.3

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 3 Proportion given local rather than general anaesthesia.

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 4 Complication rate: major complications.
Figures and Tables -
Analysis 5.4

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 4 Complication rate: major complications.

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 5 Complication rate: minor complications.
Figures and Tables -
Analysis 5.5

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 5 Complication rate: minor complications.

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 6 Requirement for further surgery.
Figures and Tables -
Analysis 5.6

Comparison 5 Hydrothermal ablation (second generation) versus rollerball (first generation), Outcome 6 Requirement for further surgery.

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 6.1

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 1 Bleeding.

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 2 Rate of satisfaction.
Figures and Tables -
Analysis 6.2

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 2 Rate of satisfaction.

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 3 Proportion given local anaesthesia (%).
Figures and Tables -
Analysis 6.3

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 3 Proportion given local anaesthesia (%).

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 4 Complication rate: major complications.
Figures and Tables -
Analysis 6.4

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 4 Complication rate: major complications.

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 5 Complication rate: minor complications.
Figures and Tables -
Analysis 6.5

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 5 Complication rate: minor complications.

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 6 Requirement for further surgery.
Figures and Tables -
Analysis 6.6

Comparison 6 Cryoablation (second generation) versus rollerball (first generation), Outcome 6 Requirement for further surgery.

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 1 Bleeding ‐ amenorrhoea rate at 1 year follow‐up.
Figures and Tables -
Analysis 7.1

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 1 Bleeding ‐ amenorrhoea rate at 1 year follow‐up.

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 2 Proportion with successful Rx (PBAC < 75).
Figures and Tables -
Analysis 7.2

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 2 Proportion with successful Rx (PBAC < 75).

Study

Electrode system

TCRE + RB

Stat test for diff

Balloon system

Corson 2000

N=122
Mean PBAC (SD): 18 (37)

N=112
Mean PBAC (SD): 28 (70)

Not significantly different

Mesh system

Cooper 2002

N=154
Mean PBAC (SD): 26.8 (57.4)

N=82
Mean PBAC (SD): 36.4 (66.3)

No reported difference

Figures and Tables -
Analysis 7.3

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 3 PBAC score 12 months after treatment.

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 4 Rate of satisfaction with treatment at 1 year.
Figures and Tables -
Analysis 7.4

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 4 Rate of satisfaction with treatment at 1 year.

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 5 Duration of operation (minutes).
Figures and Tables -
Analysis 7.5

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 5 Duration of operation (minutes).

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 6 Procedure abandon.
Figures and Tables -
Analysis 7.6

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 6 Procedure abandon.

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 7 Proportion given local anaesthesia (%).
Figures and Tables -
Analysis 7.7

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 7 Proportion given local anaesthesia (%).

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 8 Complication rate: major complications.
Figures and Tables -
Analysis 7.8

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 8 Complication rate: major complications.

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 9 Complication rate: minor complications.
Figures and Tables -
Analysis 7.9

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 9 Complication rate: minor complications.

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 10 Requirement for further surgery at 2 years (hysterectomy).
Figures and Tables -
Analysis 7.10

Comparison 7 Electrode ablation (second generation) versus TCRE + rollerball (first generation), Outcome 10 Requirement for further surgery at 2 years (hysterectomy).

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 8.1

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 1 Bleeding.

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 2 Rate of satisfaction.
Figures and Tables -
Analysis 8.2

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 2 Rate of satisfaction.

Study

Microwave

TCRE

Results

Cooper 1999

N=129
Mean duration of procedure (SD):
11.4 (10.5) mins

N=134
Mean duration of procedure (SD):
15.0 (7.2) mins

Mann Whitney U test
Mean difference:
3.6 (‐5.7, ‐1.4); P=0.001

Figures and Tables -
Analysis 8.3

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 3 Duration of operation (minutes).

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 4 Operative difficulties.
Figures and Tables -
Analysis 8.4

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 4 Operative difficulties.

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 5 Proportion given local anaesthesia.
Figures and Tables -
Analysis 8.5

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 5 Proportion given local anaesthesia.

Study

Microwave

TCRE

Results

Cooper 1999

N=129
Mean duration of hospital stay (SD):
13.4 (17.6) hours

N=134
Mean duration of hospital stay (SD):
16.7 (21.2) hours

Mann Whitney U test
No differences between groups; P=0.17

Figures and Tables -
Analysis 8.6

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 6 Duration of hospital stay (hours).

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 7 Inability to work (proportion of women).
Figures and Tables -
Analysis 8.7

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 7 Inability to work (proportion of women).

Study

MEA

TCRE

Results

Physical functioning

Cooper 1999

AT 1 YEAR:
N=116
Mean change (SD):
0.7 (18.9)

AT 2 YEARS:
N=120
Mean change (SD):
2.3 (21.3)

AT 5 YEARS:
N=116
Mean change (SD): 0.2 (24)

At 10 YEARS:

N=94

Mean change (SD): ‐4.4 (27)

AT 1 YEAR:
N=124
Mean change (SD):
2.4 (16.8)

AT 2 YEARS:
N=129
Mean change (SD):
0.9 (20.4)

AT 5 YEARS:
N=120
Mean change (SD): ‐1.2 (21)

At 10 YEARS:

N=95

Mean change (SD): ‐3.0 (25)

AT 1 YEAR:
t test:
CI (‐6.4, 2.9); P=0.45
Ancova: P=0.58

AT 2 YEARS:
t test:
P=0.28 (95% CI ‐3.8, 6.6)

AT 5 YEARS:
t test:
NS (95% CI ‐4.5 to 7.3)

At 10 YEARS:

t test:

NS (95% CI ‐8.9 to 6.1)

Social functioning

Cooper 1999

AT 1 YEAR:
N=116
Mean change (SD): 20.6 (26.5)

AT 2 YEARS:
N=120
Mean change (SD): 10.1 (27.5)

AT 5 YEARS:
N=116
Mean change (SD): 7.7 (30)

At 10 YEARS:

N=94

Mean change (SD): 10.1 (30)

At 1 YEAR:

N=124
Mean change (SD): 16.2 (24.4)

AT 2 YEARS:
N=129
Mean change (SD): 6.2 (23.7)

AT 5 YEARS:
Mean change (SD):
9.7 (25)

At 10 YEARS:

N=95

Mean change (SD): 9.9 (26)

AT 1 YEAR:
t test:
CI (‐2.1, 10.90): P=0.18
Ancova:
P=0.12

AT 2 YEARS:
t test:
P=0.33 (95% CI ‐2.5, 10.3)

AT 5 YEARS:
t test:
NS (95% CI ‐9.0 to 5.0)

At 10 YEARS:

t test:

NS (95% CI ‐7.9 to 8.3)

Physical role

Cooper 1999

AT 1 YEAR:
N=116
Mean change (SD): 23.9 (49.4)

AT 2 YEARS:
N=120
Mean change (SD): 18.5 (53.7)

AT 5 YEARS:
N=116
Mean change (SD): 17 (54)

At 10 YEARS:

N=94

Mean change (SD): 15.0 (53)

AT 1 YEAR:
N=124
Mean change (SD): 11.3 (41.7)

AT 2 YEARS:
N=129
Mean change (SD): 6.1 (43.8)

AT 5 YEARS:
N=120
Mean change (SD): 11 (43)

At 10 YEARS:

N=95

Mean change (SD): 10.9 (47)

AT 1 YEAR:
t test:
CI (1.0 to 24.3);
P=0.03
Ancova:
P=0.03

AT 2 YEARS:
t test:
P=0.06 (95% CI ‐0.2, 24.6)

AT 5 YEARS:
t test:
NS, 95% CI ‐5.8 to 19

At 10 YEARS:

t test:

NS, 95% CI ‐10.3 to 18.5

Emotional role

Cooper 1999

AT ONE YEAR:
N=116
Mean change (SD): 17.0 (48.5)

AT 2 YEARS:
N=120
Mean change (SD): 17.8 (47.5)

AT 5 YEARS:
N=116
Mean change (SD): 19 (48)

At 10 YEARS:

N=94

Mean change (SD): 21.1 (50)

AT 1 YEAR:
N=124
Mean change (SD): 13.7 (47.9)

AT 2 YEARS:
N=129
Mean change (SD): 4.2 (40.1)

AT 5 YEARS:

N=120
Mean change (SD): 20 (41)

At 10 YEARS:

N=95

Mean change (SD): 13.5 (47)

AT 1 YEAR:
t test:
CI (‐9.1 to 15.6);
P=0.59
Ancova:
P=0.38

AT 2 YEARS:
t test
P=0.17 (95% CI ‐3.6, 23.5)

AT 5 YEARS:
t test:
NS, 95% CI ‐13 to 10

At 10 YEARS:

t test:

NS, 95% CI 6.3 to 21.5

Mental health

Cooper 1999

AT 1 YEAR:
N=116
Mean change (SD): 6.3 (19.5)

AT 2 YEARS:
N=120
Mean change (SD): 6.0 (21.6)

AT 5 YEARS:
N=116
Mean change (SD): 1.4 (21)

At 10 YEARS:

N=94

Mean change (SD): 7.2 (21)

AT 1 YEAR:
N=124
Mean change (SD): 6.0 (22.2)

AT 2 YEARS:
N=129
Mean change (SD): 4.1 (19.8)

AT 5 YEARS

N=120
Mean change (SD): 1.2 (21)

At 10 YEARS:

N=95

Mean change (SD): 7.9 (25)

AT 1 YEAR:
t test:
CI (‐4.9 to 5.7);
P=0.89
Ancova:
P=0.83

AT 2 YEARS:
t test:
P=0.44 (95% CI ‐3.3, 6.9)

AT 5 YEARS:
t test:
NS, 95% CI ‐5.2 to 5.6

At 10 YEARS:

t test:

NS, 95% CI ‐7.3 to 5.9

Energy/fatigue

Cooper 1999

AT 1 YEAR:
N=116
Mean change (SD): 12.8 (21.7)

AT 2 YEARS:
N=120
Mean change (SD): 11.4 (25.1)

AT 5 YEARS:

N=116
Mean change (SD): 9.3 (25)

At 10 YEARS:

N=94

Mean change (SD): 12.9 (29)

AT 1 YEAR:
N=124
Mean change (SD): 12.1 (23.0)

AT 2 YEARS:
N=129
Mean change (SD): 11.8 (22.6)

AT 5 YEARS:

N=120
Mean change (SD): 12 (26)

At 10 YEARS:

N=95

Mean change (SD): 15.3 (27)

AT 1 YEAR:
t test:
CI (‐4.9 to 6.5);
p=0.80
Ancova:
p=0.58

AT 2 YEARS:
t test:
P=0.90 (95% CI ‐6.4, 5.5)

AT 5 YEARS:
t test:
NS, 95% CI ‐9.1 to 4.2

At 10 YEARS:

t test:

NS, 95% CI ‐10.4 to 5.6

Pain

Cooper 1999

AT 1 YEAR:
N=116
Mean change (SD): 14.8 (31.0)

AT 2 YEARS:
N=120
Mean change (SD): 13.5 (31.7)

AT 5 YEARS:

N=116
Mean change (SD): 9.3 (35)

At 10 YEARS:

N=94

Mean change (SD): 11.6 (37)

AT 1 YEAR:
N=124
Mean change (SD): 7.2 (31.1)

AT 2 YEARS:
N=129
Mean change (SD): 3.0 (29.8)

AT 5 YEARS:

N=120
Mean change (SD): 6.4 (31)

At 10 YEARS:

N=95

Mean change (SD): 12.3 (35)

AT 1 YEAR:
t test:
CI (‐0.2 to 15.5);
P=0.06
Ancova:
P=0.54

AT 2 YEARS:
t test:
P=0.02 (95% CI 2.9, 18.2)

AT 5 YEARS:
t test:
NS, 95% CI ‐5.7 to 12

At 10 YEARS:

t test:

NS, 95% CI ‐11.0 to 9.6

General health

Cooper 1999

AT 1 YEAR:
N=116
Mean change (SD): 2.4 (20.3)

AT 2 YEARS:
N=120
Mean change (SD): 0.0 (24.4)

AT 5 YEARS:

N=116
Mean change (SD): ‐3.3 (26)

At 10 YEARS:

N=94

Mean change (SD): 0.94 (23)

AT 1 YEAR:
N=124
Mean change (SD): ‐2.9 (20.0)

AT 2 YEARS:
N=129
Mean change (SD): ‐2.9 (19.0)

AT 5 YEARS:

N=120
Mean change (SD): ‐2.4 (19)

At 10 YEARS:

N=95

Mean change (SD): 2.8 (22)

AT 1 YEAR:
t test:
CI (0.2 to 10.5);
P=0.04
Ancova:
P=0.06

AT 2 YEARS:
t test:
P=0.29 (95% CI ‐2.5, 8.4)

AT 5 YEARS:
t test:
NS, 95% CI ‐6.5 to 4.9

At 10 YEARS:

t test:

NS, 95% CI ‐8.3 to 4.6

Figures and Tables -
Analysis 8.8

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 8 Quality of life ‐ change in SF‐36 score after treatment.

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 9 Improvement in other menstrual symptoms: PMS.
Figures and Tables -
Analysis 8.9

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 9 Improvement in other menstrual symptoms: PMS.

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 10 Improvement in other menstrual symptoms.
Figures and Tables -
Analysis 8.10

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 10 Improvement in other menstrual symptoms.

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 11 Reduction in pain score (points).
Figures and Tables -
Analysis 8.11

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 11 Reduction in pain score (points).

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 12 Postoperative analgesia rate.
Figures and Tables -
Analysis 8.12

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 12 Postoperative analgesia rate.

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 13 Complication rate: major complications.
Figures and Tables -
Analysis 8.13

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 13 Complication rate: major complications.

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 14 Complication rate: minor complications.
Figures and Tables -
Analysis 8.14

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 14 Complication rate: minor complications.

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 15 Requirement for further surgery.
Figures and Tables -
Analysis 8.15

Comparison 8 Microwave ablation (second generation) versus TCRE + rollerball (first generation), Outcome 15 Requirement for further surgery.

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 9.1

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 1 Bleeding.

Study

Balloon

Rollerball

Results

At 1 year follow‐up

Meyer 1998

N=125
Mean PBAC (SD): 52.2 (85.2)

N=114
Mean PBAC (SD): 39.6 (86.4)

No statistical test performed of these outcomes

van Zon‐Rabelink 2003

N=74
Median PBAC (range): 70 (0, 2265)

N=55
Median PBAC (range): 73 (0, 535)

Wilcoxon test:
P=0.90

At 2 years' follow‐up

van Zon‐Rabelink 2003

N=66
Median PBAC (range): 33.5 (0, 905)

N=55
Median PBAC (range): 73 (0, 585)

Wilcoxon test: P=0.01

Figures and Tables -
Analysis 9.2

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 2 PBAC score after treatment.

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 3 Success of treatment (lighter periods and no further surgery).
Figures and Tables -
Analysis 9.3

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 3 Success of treatment (lighter periods and no further surgery).

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 4 Success of treatment (menstrual score < 185).
Figures and Tables -
Analysis 9.4

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 4 Success of treatment (menstrual score < 185).

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 5 Rate of satisfaction.
Figures and Tables -
Analysis 9.5

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 5 Rate of satisfaction.

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 6 Duration of operation (minutes).
Figures and Tables -
Analysis 9.6

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 6 Duration of operation (minutes).

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 7 Operative difficulties.
Figures and Tables -
Analysis 9.7

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 7 Operative difficulties.

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 8 Inability to work (proportion of women).
Figures and Tables -
Analysis 9.8

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 8 Inability to work (proportion of women).

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 9 Improvement in other menstrual symptoms.
Figures and Tables -
Analysis 9.9

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 9 Improvement in other menstrual symptoms.

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 10 Complication rate: major complications.
Figures and Tables -
Analysis 9.10

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 10 Complication rate: major complications.

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 11 Complication rate: minor complications.
Figures and Tables -
Analysis 9.11

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 11 Complication rate: minor complications.

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 12 Requirement for further surgery.
Figures and Tables -
Analysis 9.12

Comparison 9 Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation), Outcome 12 Requirement for further surgery.

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 10.1

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 1 Bleeding.

Study

Balloon

Laser

Statistical test

At 6 months' follow‐up

Hawe 2003

N=37
Mean PBAC (SD): 28.8 (59.6)

N=33
Mean PBAC (SD): 27.4 (57.6)

Significance not reported

Figures and Tables -
Analysis 10.2

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 2 PBAC score after treatment.

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 3 Rate of satisfaction.
Figures and Tables -
Analysis 10.3

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 3 Rate of satisfaction.

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 4 Operative difficulties.
Figures and Tables -
Analysis 10.4

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 4 Operative difficulties.

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 5 Pain score 4 hours post procedure.
Figures and Tables -
Analysis 10.5

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 5 Pain score 4 hours post procedure.

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 6 Quality of life.
Figures and Tables -
Analysis 10.6

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 6 Quality of life.

Study

Balloon

Laser

Statistical test

PMS at 6 months' follow‐up

Hawe 2003

N=37
Mean score (SD): 24.6 (33)

N=33
Mean score (SD): 34.8 (36)

Not reported

PMS at 12 months' follow‐up

Hawe 2003

N=34
Mean score (SD): 21.9 (26.9)

N=33
Mean score (SD): 30.5 (34.7)

Not reported

Figures and Tables -
Analysis 10.7

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 7 Improvement in other menstrual symptoms.

Study

Balloon

Laser

Statistical test

Dysmenorrhoea at 6 months' follow‐up

Hawe 2003

N=37
Mean score (SD): 24 (30.9)

N=33
Mean score (SD): 23 (33.9)

Not reported

Dysmenorrhoea at 12 months' follow‐up

Hawe 2003

N=34
Mean score (SD): 25.2 (31.5)

N=33
Mean score (SD): 16.5 (22.3)

Not reported

Figures and Tables -
Analysis 10.8

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 8 Improvement in other menstrual symptoms: dysmenorrhoea (visual analogue).

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 9 Requirement for further surgery.
Figures and Tables -
Analysis 10.9

Comparison 10 Balloon (second generation) versus laser (first generation), Outcome 9 Requirement for further surgery.

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 11.1

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 1 Bleeding.

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 2 Rate of satisfaction.
Figures and Tables -
Analysis 11.2

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 2 Rate of satisfaction.

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 3 Duration of operation (minutes).
Figures and Tables -
Analysis 11.3

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 3 Duration of operation (minutes).

Study

Cavaterm balloon

TCRE

Comments

Brun 2006

n=31

Median (range): 48 (24‐150)

n=20

Median (range): 45 (23‐105)

No statistical test reported ‐ unlikely to be a difference

Figures and Tables -
Analysis 11.4

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 4 Duration of operation (minutes).

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 5 Operative difficulties.
Figures and Tables -
Analysis 11.5

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 5 Operative difficulties.

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 6 Postoperative pain (continuous data).
Figures and Tables -
Analysis 11.6

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 6 Postoperative pain (continuous data).

Study

Cavaterm balloon

TCRE

Comments

Brun 2006

n=31

Pain score (VAS scale 0‐100): median (range): 45 (1‐100)

n=20

Pain score (VAS scale 0‐100): median (range): 10 (0‐90)

Mann Whitney rank sum test:

P=0.012

Figures and Tables -
Analysis 11.7

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 7 Postoperative pain (descriptive data).

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 8 Hospital stay (days).
Figures and Tables -
Analysis 11.8

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 8 Hospital stay (days).

Study

Cavaterm balloon

TCRE

Comments

Brun 2006

n=31

Median (range): 21 (0‐36)

n=20

Median (range): 30 (6‐72)

Mann Whitney rank sum test

P=0.012

Figures and Tables -
Analysis 11.9

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 9 Duration of hospital stay (hours).

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 10 Return to normal activities (days).
Figures and Tables -
Analysis 11.10

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 10 Return to normal activities (days).

Study

Cavaterm balloon

TCRE

Comments

Brun 2006

n=31

Median (range): 4 (1‐20)

n=20

Median (range): 2 (1‐30)

Mann Whitney rank test ‐ not significantly different

Figures and Tables -
Analysis 11.11

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 11 Return to normal activities (days).

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 12 Complication rate: major complications.
Figures and Tables -
Analysis 11.12

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 12 Complication rate: major complications.

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 13 Complication rate: minor complications.
Figures and Tables -
Analysis 11.13

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 13 Complication rate: minor complications.

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 14 Complication rate: minor complications (dichotomous).
Figures and Tables -
Analysis 11.14

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 14 Complication rate: minor complications (dichotomous).

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 15 Requirement for further surgery.
Figures and Tables -
Analysis 11.15

Comparison 11 Balloon (second generation) versus TCRE (first generation), Outcome 15 Requirement for further surgery.

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 12.1

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 1 Bleeding.

Study

Electrode

Balloon

Statistical test

At 6 months' follow‐up

Penninx 2016

At 12 months' follow‐up

Abbott 2003

N=37
Median PBAC (range): 3 (0, 720)

N=18
Median PBAC (range): 21 (0, 157)

Mann Whitney
P=0.2

Penninx 2016

N=52

PBAC<100 at 12 months: 44

N=52

PBAC<100 at 12 months: 31

RR=0.4 95% CI=0.2‐0.8

Figures and Tables -
Analysis 12.2

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 2 PBAC score after treatment.

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 3 Rate of satisfaction.
Figures and Tables -
Analysis 12.3

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 3 Rate of satisfaction.

Study

Electrode

Balloon

Statistical test

Abbott 2003

N=37
Mean time in mins (range): 4 (2, 8)

N=18
Mean time in mins (range): 23 (19, 29)

t test
P=0.0001

Bongers 2004

N=82
Mean time in mins (range): 9 (5, 32)

N=43
Mean time in mins (range): 14 (9, 40)

Not reported

Clark 2011

N=42

Mean time in mins (SD): 5.7 (2.1)

N=39

Mean time in mins (SD): 12.5 (2.3)

MD=6.7 mins (95% CI 5.8 to 7.7); p<0.001

Note: this is an office procedure in both arms)

Penninx 2016

N=52 Mean time in mins (range)

10.4 min (6‐30)

N=52 Mean time in mins (range)

12.1 (5‐45)

p=0.34

Figures and Tables -
Analysis 12.4

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 4 Duration of operation.

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 5 Operative difficulties.
Figures and Tables -
Analysis 12.5

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 5 Operative difficulties.

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 6 Completion of procedure.
Figures and Tables -
Analysis 12.6

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 6 Completion of procedure.

Study

Bipolar RF ablation

Thermal ablation

Results

Clark 2011

N=42

Mean: 6.4 days

N=39

Mean: 6.6 days

No significant difference between groups: 0.2 days difference (95% CI ‐5.9 to 6.2)

Figures and Tables -
Analysis 12.7

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 7 Time taken off work (days).

Study

Bipolar RF ablation

Balloon ablation

Results

Clark 2011

N=42

Mean (days): 4.9

N=39

Mean (days): 8.1

No significant difference between groups: 3.2 days difference (95% CI ‐1.6 to 8.1)

Figures and Tables -
Analysis 12.8

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 8 Time to resume normal activities (days).

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 9 Quality of life.
Figures and Tables -
Analysis 12.9

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 9 Quality of life.

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 10 Menorrhagia Outcome Questionnaire.
Figures and Tables -
Analysis 12.10

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 10 Menorrhagia Outcome Questionnaire.

Study

Electrode

Balloon

Statistical test

At 12 months' follow‐up

Abbott 2003

N=37
Median score (range): 0 (0, 96)

N=18
Median score (range): 29 (0, 77)

Mann Whitney
P=0.008

Figures and Tables -
Analysis 12.11

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 11 Dysmenorrhoea rate (VAS score).

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 12 Improvement in other menstrual symptoms.
Figures and Tables -
Analysis 12.12

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 12 Improvement in other menstrual symptoms.

Study

Electrode

Balloon

Statistical test

At 12 months' follow‐up

Abbott 2003

N=37
Median score (range): 0 (0, 100)

N=18
Median score (range): 32 (0, 100)

Mann Whitney
P=0.007

Figures and Tables -
Analysis 12.13

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 13 PMS rate (VAS score).

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 14 Complication rate: major complications.
Figures and Tables -
Analysis 12.14

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 14 Complication rate: major complications.

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 15 Requirement for further surgery.
Figures and Tables -
Analysis 12.15

Comparison 12 Bipolar radiofrequency (second generation) versus balloon ablation (second generation), Outcome 15 Requirement for further surgery.

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 13.1

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 1 Bleeding.

Study

Follow up

Microwave ablation

Balloon ablation

Results

Sambrook 2009

12 months

N=143

Mean PBAC score (interquartile range): 3.0 (0.0 to 14.0)

N=135

Mean PBAC score (interquartile range): 4.0 (0.0 to 14.0)

Incidence rate ratio (95% CI):

0.91 (0.6 to 1.5)

Figures and Tables -
Analysis 13.2

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 2 PBAC score at 12 months' follow‐up.

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 3 Rate of satisfaction.
Figures and Tables -
Analysis 13.3

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 3 Rate of satisfaction.

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 4 Operation time (minutes).
Figures and Tables -
Analysis 13.4

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 4 Operation time (minutes).

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 5 Operative difficulties causing failure.
Figures and Tables -
Analysis 13.5

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 5 Operative difficulties causing failure.

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 6 Proportion choosing local anaesthesia.
Figures and Tables -
Analysis 13.6

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 6 Proportion choosing local anaesthesia.

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 7 Proportion requiring opiate analgesia.
Figures and Tables -
Analysis 13.7

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 7 Proportion requiring opiate analgesia.

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 8 Recovery: proportion requiring overnight stay.
Figures and Tables -
Analysis 13.8

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 8 Recovery: proportion requiring overnight stay.

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 9 Quality of life scores.
Figures and Tables -
Analysis 13.9

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 9 Quality of life scores.

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 10 Requirement for further surgery (hysterectomy).
Figures and Tables -
Analysis 13.10

Comparison 13 Microwave ablation (second generation) versus balloon ablation (second generation), Outcome 10 Requirement for further surgery (hysterectomy).

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 14.1

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 1 Bleeding.

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 2 Rate of satisfaction.
Figures and Tables -
Analysis 14.2

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 2 Rate of satisfaction.

Study

Bipolar RF

Hydrotherm ablation

Results

Penninx 2010

N=82

Median (range): 11.8 (5 to 40)

N=74

Median (range): 27.8 (14 to 55)

Test used not stated

p<0.001

Figures and Tables -
Analysis 14.3

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 3 Duration of procedure (minutes).

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 4 Improvement in other menstrual symptoms.
Figures and Tables -
Analysis 14.4

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 4 Improvement in other menstrual symptoms.

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 5 Complication rate: major complications.
Figures and Tables -
Analysis 14.5

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 5 Complication rate: major complications.

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 6 Requirement for further surgery.
Figures and Tables -
Analysis 14.6

Comparison 14 Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation), Outcome 6 Requirement for further surgery.

Comparison 15 Ablative curettage versus overcurettage, Outcome 1 Bleeding.
Figures and Tables -
Analysis 15.1

Comparison 15 Ablative curettage versus overcurettage, Outcome 1 Bleeding.

Comparison 15 Ablative curettage versus overcurettage, Outcome 2 Surgery difficulties: failure rate of procedure.
Figures and Tables -
Analysis 15.2

Comparison 15 Ablative curettage versus overcurettage, Outcome 2 Surgery difficulties: failure rate of procedure.

Comparison 15 Ablative curettage versus overcurettage, Outcome 3 Recovery: hospital stay (days).
Figures and Tables -
Analysis 15.3

Comparison 15 Ablative curettage versus overcurettage, Outcome 3 Recovery: hospital stay (days).

Comparison 15 Ablative curettage versus overcurettage, Outcome 4 Complication rate: major complications.
Figures and Tables -
Analysis 15.4

Comparison 15 Ablative curettage versus overcurettage, Outcome 4 Complication rate: major complications.

Comparison 15 Ablative curettage versus overcurettage, Outcome 5 Complication rate: minor complications.
Figures and Tables -
Analysis 15.5

Comparison 15 Ablative curettage versus overcurettage, Outcome 5 Complication rate: minor complications.

Comparison 15 Ablative curettage versus overcurettage, Outcome 6 Requirement for further surgery.
Figures and Tables -
Analysis 15.6

Comparison 15 Ablative curettage versus overcurettage, Outcome 6 Requirement for further surgery.

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 16.1

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 1 Bleeding.

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 2 Bleeding PBAC at 12 months' follow‐up.
Figures and Tables -
Analysis 16.2

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 2 Bleeding PBAC at 12 months' follow‐up.

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 3 Rate of satisfaction.
Figures and Tables -
Analysis 16.3

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 3 Rate of satisfaction.

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 4 Duration of treatment (seconds).
Figures and Tables -
Analysis 16.4

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 4 Duration of treatment (seconds).

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 5 Improvement in other menstrual symptoms: dysmenorrhoea.
Figures and Tables -
Analysis 16.5

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 5 Improvement in other menstrual symptoms: dysmenorrhoea.

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 6 Complication rate.
Figures and Tables -
Analysis 16.6

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 6 Complication rate.

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 7 Requirement for further surgery.
Figures and Tables -
Analysis 16.7

Comparison 16 Microwave ablation (second generation) versus bipolar radiofrequency (second generation), Outcome 7 Requirement for further surgery.

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 1 Bleeding.
Figures and Tables -
Analysis 17.1

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 1 Bleeding.

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 2 Rate of satisfaction.
Figures and Tables -
Analysis 17.2

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 2 Rate of satisfaction.

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 3 Duration of surgery.
Figures and Tables -
Analysis 17.3

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 3 Duration of surgery.

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 4 Improvement in other menstrual symptoms: dysmenorrhoea.
Figures and Tables -
Analysis 17.4

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 4 Improvement in other menstrual symptoms: dysmenorrhoea.

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 5 Improvement in other menstrual symptoms: PMS at 12 months' follow‐up.
Figures and Tables -
Analysis 17.5

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 5 Improvement in other menstrual symptoms: PMS at 12 months' follow‐up.

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 6 Complication rate: major complications.
Figures and Tables -
Analysis 17.6

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 6 Complication rate: major complications.

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 7 Complication rate: minor complications.
Figures and Tables -
Analysis 17.7

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 7 Complication rate: minor complications.

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 8 Requirement for further surgery.
Figures and Tables -
Analysis 17.8

Comparison 17 Bipolar (Minerva) (second generation) versus rollerball ablation (first generation), Outcome 8 Requirement for further surgery.

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 1 Bleeding.
Figures and Tables -
Analysis 18.1

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 1 Bleeding.

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 2 Bleeding ‐ amenorrhoea at 12 months' follow‐up (final plot).
Figures and Tables -
Analysis 18.2

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 2 Bleeding ‐ amenorrhoea at 12 months' follow‐up (final plot).

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 3 Satisfaction rate.
Figures and Tables -
Analysis 18.3

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 3 Satisfaction rate.

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 4 Satisfaction rate at 1 year follow‐up (final plot).
Figures and Tables -
Analysis 18.4

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 4 Satisfaction rate at 1 year follow‐up (final plot).

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 5 Duration of operation (minutes).
Figures and Tables -
Analysis 18.5

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 5 Duration of operation (minutes).

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 6 Operative difficulties.
Figures and Tables -
Analysis 18.6

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 6 Operative difficulties.

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 7 Proportion given local anaesthesia (%).
Figures and Tables -
Analysis 18.7

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 7 Proportion given local anaesthesia (%).

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 8 Inability to work.
Figures and Tables -
Analysis 18.8

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 8 Inability to work.

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 9 Complication rate: major complications.
Figures and Tables -
Analysis 18.9

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 9 Complication rate: major complications.

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 10 Complication rate: minor complications.
Figures and Tables -
Analysis 18.10

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 10 Complication rate: minor complications.

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 11 Requirement for additional surgery.
Figures and Tables -
Analysis 18.11

Comparison 18 Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation, Outcome 11 Requirement for additional surgery.

Summary of findings for the main comparison. Overall analyses: second‐generation endometrial ablation compared to first‐generation endometrial ablation for heavy menstrual bleeding

Overall analyses: second‐generation endometrial ablation compared to first‐generation endometrial ablation for heavy menstrual bleeding

Patient or population: heavy menstrual bleeding
Setting: clinic
Intervention: overall analyses: second‐generation endometrial ablation
Comparison: first‐generation endometrial ablation

Outcomes

Anticipated absolute effects* (95% CI)

Relative effect
(95% CI)

No. of participants
(studies)

Certainty of the evidence
(GRADE)

Comments

Risk with first‐generation endometrial ablation

Risk with overall analyses: second‐generation endometrial ablation

Bleeding

Amenorrhoea at 1 year follow‐up

394 per 1000

390 per 1000
(307 to 501)

RR 0.99
(0.78 to 1.27)

2145
(12 RCTs)

⊕⊝⊝⊝
VERY LOWa,b,c

PBAC < 75 or acceptable improvement at 12 months' follow‐up

809 per 1000

833 per 1000
(793 to 882)

RR 1.03
(0.98 to 1.09)

1282
(5 RCTs)

⊕⊕⊝⊝
LOWd,e

Amenorrhoea at 2 to 5 years' follow‐up

484 per 1000

561 per 1000
(377 to 832)

RR 1.16
(0.78 to 1.72)

672
(4 RCTs)

⊕⊝⊝⊝
VERY LOWb,f

PBAC < 75 or acceptable improvement at 5 years' follow‐up

537 per 1000

580 per 1000
(467 to 720)

RR 1.08
(0.87 to 1.34)

263
(1 RCT)

⊕⊕⊝⊝
LOWe,g

Satisfaction rate

At 1 year follow‐up

898 per 1000

907 per 1000
(880 to 933)

RR 1.01
(0.98 to 1.04)

1750
(11 RCTs)

⊕⊕⊝⊝
LOWf,h

At 2 to 5 years' follow‐up

868 per 1000

886 per 1000
(808 to 981)

RR 1.02
(0.93 to 1.13)

672
(4 RCTs)

⊕⊝⊝⊝
VERY LOWb,e,i

Duration of operation (minutes)

Mean duration of operation (minutes) was 27

MD 13.52 lower
(16.9 lower to 10.13 lower)

1822
(9 RCTs)

⊕⊝⊝⊝
VERY LOWb,d,e

Proportion given local anaesthesia (%)

208 per 1000

578 per 1000
(366 to 915)

RR 2.78
(1.76 to 4.40)

1434
(6 RCTs)

⊕⊝⊝⊝
VERY LOWb,d,j

Complication rate ‐ perforation

13 per 1000

4 per 1000
(1 to 13)

RR 0.32
(0.10 to 1.01)

1885
(8 RCTs)

⊕⊕⊝⊝
LOWe,k

Requirement for additional surgery

At 1 year follow‐up (ablation or hysterectomy)

66 per 1000

47 per 1000
(27 to 83)

RR 0.72
(0.41 to 1.26)

935
(6 RCTs)

⊕⊕⊝⊝
LOWf,l

At 2 to 5 years' follow‐up (hysterectomy)

191 per 1000

162 per 1000
(113 to 233)

RR 0.85
(0.59 to 1.22)

758
(4 RCTs)

⊕⊕⊕⊝
MODERATEe

*The risk in the intervention group (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).

CI: confidence interval; MD: mean difference; PBAC: Pictorial Blood Assessment Chart; RCT: randomised controlled trial; RR: risk ratio.

GRADE Working Group grades of evidence.
High certainty: we are very confident that the true effect lies close to that of the estimate of the effect.
Moderate certainty: we are moderately confident in the effect estimate: the true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different.
Low certainty: our confidence in the effect estimate is limited: the true effect may be substantially different from the estimate of the effect.
Very low certainty: we have very little confidence in the effect estimate: the true effect is likely to be substantially different from the estimate of effect.

aEight studies provided insufficient details for a judgement about allocation concealment; downgraded one level.

bHeterogeneity was high at I² > 75%; downgraded two levels.

cThe funnel plot suggested asymmetry; downgraded one level.

dOnly two studies provided sufficient details for a judgement about allocation concealment; no blinding of participants/researchers or outcome assessors; downgraded one level.

eNo blinding of participants/researchers or outcome assessors; downgraded one level.

fThree studies provided insufficient details for a judgement about allocation concealment; only one study provided adequate data on blinding of participants/researchers and outcome assessors; downgraded two levels.

gEvidence of imprecision based on one study with n < 300; downgraded one level.

hOnly one study provided adequate data on blinding of participants/researchers and outcome assessors; downgraded one level.

iOnly one study provided sufficient details for a judgement about allocation concealment; downgraded one level.

jThe confidence interval has a very wide range (1.76 to 4.40); downgraded one level.

kThe number of events is very low and the confidence interval is wide; downgraded one level.

lThe number of events is very low; downgraded one level.

Figures and Tables -
Summary of findings for the main comparison. Overall analyses: second‐generation endometrial ablation compared to first‐generation endometrial ablation for heavy menstrual bleeding
Comparison 1. Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding ‐ blood loss (mL) at 6 months Show forest plot

1

22

Mean Difference (IV, Fixed, 95% CI)

23.6 [‐8.32, 55.52]

2 Bleeding Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

2.1 Amenorrhoea rate at 6 months

2

348

Risk Ratio (M‐H, Fixed, 95% CI)

0.97 [0.66, 1.45]

2.2 Amenorrhoea/hypomenorrhoea rate at 6 months

1

326

Risk Ratio (M‐H, Fixed, 95% CI)

0.97 [0.89, 1.05]

2.3 Amenorrhoea/hypomenorrhoea rate at 12 months

1

306

Risk Ratio (M‐H, Fixed, 95% CI)

1.06 [0.92, 1.22]

3 Rate of satisfaction at 12 months (very/moderately) Show forest plot

1

321

Risk Ratio (M‐H, Fixed, 95% CI)

0.99 [0.92, 1.06]

4 Duration of operation (minutes) Show forest plot

2

386

Mean Difference (IV, Fixed, 95% CI)

9.15 [7.21, 11.09]

5 Operative difficulties Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

5.1 Procedure abandoned

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

1.47 [0.61, 3.51]

5.2 Failed instrumentation

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

0.20 [0.01, 4.05]

5.3 Equipment failure

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

5.54 [1.65, 18.60]

5.4 Immediate hysterectomy

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

0.33 [0.01, 7.95]

6 Good general health Show forest plot

1

321

Risk Ratio (M‐H, Fixed, 95% CI)

1.03 [0.95, 1.12]

7 Improvement in menstrual symptoms Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

7.1 Improvement in symptoms (general)

1

321

Risk Ratio (M‐H, Fixed, 95% CI)

1.03 [0.87, 1.21]

7.2 Improvement in dysmenorrhoea at 6 months

1

253

Risk Ratio (M‐H, Fixed, 95% CI)

1.17 [1.00, 1.38]

7.3 Improvement in dysmenorrhoea at 12 months

1

218

Risk Ratio (M‐H, Fixed, 95% CI)

1.00 [0.87, 1.15]

8 Complication rate: major complications Show forest plot

2

2218

Risk Ratio (M‐H, Fixed, 95% CI)

1.41 [0.83, 2.41]

8.1 Perforation

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

0.14 [0.01, 2.69]

8.2 Bowel obstruction

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

2.94 [0.12, 71.59]

8.3 Pelvic sepsis

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

0.82 [0.25, 2.62]

8.4 Haematometra

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

0.20 [0.01, 4.05]

8.5 Glycine toxicity

1

22

Risk Ratio (M‐H, Fixed, 95% CI)

4.23 [0.23, 79.10]

8.6 Fluid overload (> 1.5 L)

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

4.89 [1.44, 16.61]

8.7 Uterine tamponade

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

1.14 [0.39, 3.33]

9 Complication rate: minor complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

9.1 Burns

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

4.89 [0.24, 101.21]

9.2 Urinary tract infection

1

366

Risk Ratio (M‐H, Fixed, 95% CI)

1.96 [0.36, 10.55]

10 Requirement for further surgical treatment (within 12 months) Show forest plot

2

388

Risk Ratio (M‐H, Fixed, 95% CI)

0.84 [0.55, 1.29]

Figures and Tables -
Comparison 1. Laser ablation (first generation) versus transcervical resection of the endometrium (TCRE) (first generation)
Comparison 2. Vaporising electrode ablation (first generation) versus TCRE (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding ‐ amenorrhoea rate at 12 months' follow‐up Show forest plot

1

182

Risk Ratio (M‐H, Fixed, 95% CI)

0.90 [0.73, 1.12]

1.1 Amenorrhoea rate at 12 months' follow‐up

1

91

Risk Ratio (M‐H, Fixed, 95% CI)

0.76 [0.46, 1.24]

1.2 Amenorrhea/hypomenorrhoea rate at 12 months' follow‐up

1

91

Risk Ratio (M‐H, Fixed, 95% CI)

0.99 [0.80, 1.22]

2 Bleeding ‐ PBAC score at 12 months Show forest plot

1

91

Mean Difference (IV, Fixed, 95% CI)

‐5.0 [‐19.18, 9.18]

3 Rate of satisfaction at 12 months (very/moderately) Show forest plot

1

91

Risk Ratio (M‐H, Fixed, 95% CI)

1.03 [0.93, 1.14]

4 Duration of operation (minutes) Show forest plot

1

91

Mean Difference (IV, Fixed, 95% CI)

‐1.50 [‐2.65, ‐0.35]

5 Operative difficulties Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

5.1 Difficulty with surgery (moderate or severe)

1

91

Risk Ratio (M‐H, Fixed, 95% CI)

0.29 [0.10, 0.82]

6 Complication rate: major complications Show forest plot

1

91

Mean Difference (IV, Fixed, 95% CI)

‐258.0 [‐342.05, ‐173.95]

6.1 Degree of fluid deficit (mL)

1

91

Mean Difference (IV, Fixed, 95% CI)

‐258.0 [‐342.05, ‐173.95]

Figures and Tables -
Comparison 2. Vaporising electrode ablation (first generation) versus TCRE (first generation)
Comparison 3. Rollerball (first generation) versus TCRE (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Duration of operation (minutes) Show forest plot

1

45

Mean Difference (IV, Fixed, 95% CI)

‐1.10 [‐2.92, 0.72]

2 Complication rate: major complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

2.1 Fluid deficit

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

0.32 [0.01, 7.76]

2.2 Perforation

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

0.32 [0.01, 7.76]

3 Requirement for further surgery Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

3.1 At 2 years' follow‐up hysterectomy or ablation

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.55, 1.95]

3.2 At 2 years' follow‐up (hysterectomy only)

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

1.45 [0.43, 4.88]

3.3 At 2 to 5 years' follow‐up (hysterectomy or ablation)

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

1.21 [0.70, 2.10]

3.4 At 2 to 5 years' follow‐up (hysterectomy only)

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

1.21 [0.51, 2.85]

3.5 At more than 5 years' follow‐up (hysterectomy or ablation)

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

1.39 [0.82, 2.36]

3.6 At more than 5 years' follow‐up (hysterectomy only)

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

1.32 [0.66, 2.63]

Figures and Tables -
Comparison 3. Rollerball (first generation) versus TCRE (first generation)
Comparison 4. Thermal laser (second generation) versus TCRE (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding ‐ amenorrhoea rate Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 At 1 year follow‐up

1

111

Risk Ratio (M‐H, Fixed, 95% CI)

2.46 [1.50, 4.03]

1.2 At 2 to 5 years' follow‐up

1

111

Risk Ratio (M‐H, Fixed, 95% CI)

2.49 [1.48, 4.21]

2 Rate of satisfaction Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

2.1 At 1 year follow‐up

1

111

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.94, 1.16]

2.2 At 2 to 5 years' follow‐up

1

111

Risk Ratio (M‐H, Fixed, 95% CI)

1.02 [0.91, 1.14]

3 Duration of operation Show forest plot

1

111

Mean Difference (IV, Fixed, 95% CI)

‐9.30 [‐11.36, ‐7.24]

4 Complication rate: major complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

4.1 Perforation

1

111

Risk Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

5 Complication rate: minor complications Show forest plot

1

111

Odds Ratio (M‐H, Fixed, 95% CI)

0.48 [0.04, 5.47]

5.1 UTI

1

111

Odds Ratio (M‐H, Fixed, 95% CI)

0.48 [0.04, 5.47]

6 Requirement for further surgery rate (hysterectomy only) Show forest plot

1

111

Risk Ratio (M‐H, Fixed, 95% CI)

0.59 [0.15, 2.35]

6.1 At 2 to 5 years' follow‐up

1

111

Risk Ratio (M‐H, Fixed, 95% CI)

0.59 [0.15, 2.35]

Figures and Tables -
Comparison 4. Thermal laser (second generation) versus TCRE (first generation)
Comparison 5. Hydrothermal ablation (second generation) versus rollerball (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 PBAC ≤ 75 at 1 year follow‐up

1

250

Risk Ratio (M‐H, Fixed, 95% CI)

0.94 [0.82, 1.07]

1.2 PBAC ≤ 100 at 1 year follow‐up

1

250

Risk Ratio (M‐H, Fixed, 95% CI)

0.96 [0.86, 1.07]

1.3 PBAC ≤ 100 at 2 years' follow‐up

1

225

Risk Ratio (M‐H, Fixed, 95% CI)

1.00 [0.92, 1.09]

1.4 PBAC ≤ 100 at 2 to 5 years' follow‐up

1

203

Risk Ratio (M‐H, Fixed, 95% CI)

1.03 [0.95, 1.12]

1.5 Amenorrhoea at 1 year follow‐up

1

250

Risk Ratio (M‐H, Fixed, 95% CI)

0.79 [0.60, 1.05]

1.6 Amenorrhoea at 2 years' follow‐up

1

225

Risk Ratio (M‐H, Fixed, 95% CI)

1.01 [0.75, 1.36]

1.7 Amenorrhoea at 2 to 5 years' follow‐up

1

203

Risk Ratio (M‐H, Fixed, 95% CI)

1.17 [0.86, 1.59]

2 Rate of satisfaction Show forest plot

1

203

Risk Ratio (M‐H, Fixed, 95% CI)

1.01 [0.96, 1.06]

2.1 At 2 to 5 years' follow‐up

1

203

Risk Ratio (M‐H, Fixed, 95% CI)

1.01 [0.96, 1.06]

3 Proportion given local rather than general anaesthesia Show forest plot

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

2.02 [1.32, 3.09]

4 Complication rate: major complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

4.1 Cervical lacerations

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

0.09 [0.00, 1.92]

4.2 Haematometra

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

0.18 [0.04, 0.93]

4.3 Endometritis

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

0.92 [0.08, 10.05]

5 Complication rate: minor complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

5.1 Abdominal pain (at 2 weeks)

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

1.40 [1.03, 1.90]

5.2 Nausea or vomiting

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

3.08 [1.36, 6.98]

5.3 Uterine cramping

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

1.12 [0.72, 1.74]

5.4 Urinary tract infection

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

1.15 [0.23, 5.83]

5.5 First‐degree burn

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

2.32 [0.11, 47.89]

6 Requirement for further surgery Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

6.1 At 1 year follow‐up (any surgery)

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

2.32 [0.11, 47.89]

6.2 At 2 to 5 years' follow‐up (any surgery)

1

262

Risk Ratio (M‐H, Fixed, 95% CI)

1.26 [0.58, 2.73]

6.3 At 5 years' follow‐up (hysterectomy only)

1

262

Risk Ratio (M‐H, Fixed, 95% CI)

1.54 [0.58, 4.06]

Figures and Tables -
Comparison 5. Hydrothermal ablation (second generation) versus rollerball (first generation)
Comparison 6. Cryoablation (second generation) versus rollerball (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

1

228

Risk Ratio (M‐H, Fixed, 95% CI)

0.50 [0.36, 0.69]

1.1 Amenorrhoea at 1 year follow‐up

1

228

Risk Ratio (M‐H, Fixed, 95% CI)

0.50 [0.36, 0.69]

2 Rate of satisfaction Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

2.1 At 1 year follow‐up

1

279

Risk Ratio (M‐H, Fixed, 95% CI)

1.06 [0.96, 1.17]

2.2 At 2 years' follow‐up

1

137

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.91, 1.17]

3 Proportion given local anaesthesia (%) Show forest plot

1

279

Risk Ratio (M‐H, Fixed, 95% CI)

6.62 [3.22, 13.63]

4 Complication rate: major complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

4.1 Perforation

1

279

Risk Ratio (M‐H, Fixed, 95% CI)

0.15 [0.01, 3.63]

5 Complication rate: minor complications Show forest plot

1

1116

Odds Ratio (M‐H, Fixed, 95% CI)

0.56 [0.15, 2.09]

5.1 Vaginal bleeding

1

279

Odds Ratio (M‐H, Fixed, 95% CI)

1.35 [0.05, 33.43]

5.2 Abdominal cramping

1

279

Odds Ratio (M‐H, Fixed, 95% CI)

2.26 [0.11, 47.54]

5.3 UTI

1

279

Odds Ratio (M‐H, Fixed, 95% CI)

0.15 [0.01, 3.65]

5.4 Severe pelvic pain

1

279

Odds Ratio (M‐H, Fixed, 95% CI)

0.15 [0.01, 3.65]

6 Requirement for further surgery Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

6.1 At 2 years' follow‐up (any surgery)

1

279

Risk Ratio (M‐H, Fixed, 95% CI)

1.00 [0.45, 2.22]

6.2 At 2 years' follow‐up (hysterectomy)

1

279

Risk Ratio (M‐H, Fixed, 95% CI)

0.83 [0.34, 2.00]

Figures and Tables -
Comparison 6. Cryoablation (second generation) versus rollerball (first generation)
Comparison 7. Electrode ablation (second generation) versus TCRE + rollerball (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding ‐ amenorrhoea rate at 1 year follow‐up Show forest plot

2

470

Risk Ratio (M‐H, Fixed, 95% CI)

1.02 [0.79, 1.31]

1.1 Balloon system

1

234

Risk Ratio (M‐H, Fixed, 95% CI)

0.89 [0.62, 1.29]

1.2 Mesh system

1

236

Risk Ratio (M‐H, Fixed, 95% CI)

1.16 [0.82, 1.64]

2 Proportion with successful Rx (PBAC < 75) Show forest plot

2

470

Risk Ratio (M‐H, Fixed, 95% CI)

1.06 [0.98, 1.15]

2.1 Balloon system

1

234

Risk Ratio (M‐H, Fixed, 95% CI)

1.05 [0.94, 1.17]

2.2 Mesh system

1

236

Risk Ratio (M‐H, Fixed, 95% CI)

1.08 [0.96, 1.22]

3 PBAC score 12 months after treatment Show forest plot

Other data

No numeric data

3.1 Balloon system

Other data

No numeric data

3.2 Mesh system

Other data

No numeric data

4 Rate of satisfaction with treatment at 1 year Show forest plot

1

236

Risk Ratio (M‐H, Fixed, 95% CI)

0.99 [0.92, 1.06]

4.1 Mesh system

1

236

Risk Ratio (M‐H, Fixed, 95% CI)

0.99 [0.92, 1.06]

5 Duration of operation (minutes) Show forest plot

2

520

Mean Difference (IV, Fixed, 95% CI)

‐18.70 [‐20.66, ‐16.75]

5.1 Balloon system

1

255

Mean Difference (IV, Fixed, 95% CI)

‐16.20 [‐19.55, ‐12.85]

5.2 Mesh system

1

265

Mean Difference (IV, Fixed, 95% CI)

‐20.0 [‐22.41, ‐17.59]

6 Procedure abandon Show forest plot

1

267

Odds Ratio (M‐H, Fixed, 95% CI)

2.58 [0.10, 63.95]

7 Proportion given local anaesthesia (%) Show forest plot

2

520

Risk Ratio (M‐H, Fixed, 95% CI)

3.85 [2.94, 5.04]

7.1 Balloon system

1

255

Risk Ratio (M‐H, Fixed, 95% CI)

3.66 [2.65, 5.07]

7.2 Mesh system

1

265

Risk Ratio (M‐H, Fixed, 95% CI)

4.11 [2.61, 6.47]

8 Complication rate: major complications Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

8.1 Cervical tear/stenosis

2

532

Risk Ratio (M‐H, Fixed, 95% CI)

0.11 [0.01, 0.87]

8.2 Perforation

2

532

Risk Ratio (M‐H, Fixed, 95% CI)

0.13 [0.02, 1.01]

8.3 Pelvic abscess

1

265

Risk Ratio (M‐H, Fixed, 95% CI)

0.17 [0.01, 4.19]

8.4 Haematometra

2

532

Risk Ratio (M‐H, Fixed, 95% CI)

0.43 [0.08, 2.23]

8.5 Fluid overload

1

267

Risk Ratio (M‐H, Fixed, 95% CI)

0.29 [0.01, 6.93]

8.6 Myometritis

1

267

Risk Ratio (M‐H, Fixed, 95% CI)

0.29 [0.01, 6.93]

8.7 Urinary incontinence

1

267

Risk Ratio (M‐H, Fixed, 95% CI)

0.29 [0.01, 6.93]

8.8 PID

1

265

Risk Ratio (M‐H, Fixed, 95% CI)

1.03 [0.09, 11.19]

8.9 Endometritis

1

265

Risk Ratio (M‐H, Fixed, 95% CI)

0.34 [0.06, 2.01]

9 Complication rate: minor complications Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

9.1 Nausea/vomiting or severe pelvic pain

2

532

Risk Ratio (M‐H, Fixed, 95% CI)

1.10 [0.37, 3.27]

9.2 UTI

2

532

Risk Ratio (M‐H, Fixed, 95% CI)

1.05 [0.39, 2.84]

9.3 Fever

1

267

Risk Ratio (M‐H, Fixed, 95% CI)

0.85 [0.05, 13.51]

9.4 Haemorrhage

1

265

Risk Ratio (M‐H, Fixed, 95% CI)

0.51 [0.03, 8.13]

9.5 Bradycardia

1

265

Risk Ratio (M‐H, Fixed, 95% CI)

1.55 [0.06, 37.70]

10 Requirement for further surgery at 2 years (hysterectomy) Show forest plot

1

255

Risk Ratio (M‐H, Fixed, 95% CI)

0.52 [0.18, 1.50]

10.1 Balloon system

1

255

Risk Ratio (M‐H, Fixed, 95% CI)

0.52 [0.18, 1.50]

Figures and Tables -
Comparison 7. Electrode ablation (second generation) versus TCRE + rollerball (first generation)
Comparison 8. Microwave ablation (second generation) versus TCRE + rollerball (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 PBAC < 75 or acceptable improvement at 1 year follow‐up

2

562

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.96, 1.13]

1.2 PBAC < 75 or acceptable improvement at 2 to 5 years' follow‐up

1

236

Risk Ratio (M‐H, Fixed, 95% CI)

1.12 [0.97, 1.28]

1.3 PBAC < 75 or acceptable improvement at > 5 years' follow‐up

1

263

Risk Ratio (M‐H, Fixed, 95% CI)

1.08 [0.87, 1.34]

1.4 Amenorrhoea at 1 year follow‐up

2

562

Risk Ratio (M‐H, Fixed, 95% CI)

1.12 [0.93, 1.36]

1.5 Amenorrhoea at 2 years' follow‐up

1

249

Risk Ratio (M‐H, Fixed, 95% CI)

1.16 [0.87, 1.53]

1.6 Amenorrhoea at 2 to 5 years' follow‐up

1

236

Risk Ratio (M‐H, Fixed, 95% CI)

0.93 [0.78, 1.12]

1.7 Amenorrhoea at > 5 years' follow‐up

1

189

Risk Ratio (M‐H, Fixed, 95% CI)

0.94 [0.83, 1.05]

2 Rate of satisfaction Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

2.1 At 1 year follow‐up

2

533

Risk Ratio (M‐H, Fixed, 95% CI)

1.01 [0.95, 1.07]

2.2 At 2 years' follow‐up

1

249

Risk Ratio (M‐H, Fixed, 95% CI)

1.19 [1.02, 1.38]

2.3 At 2 to 5 years' follow‐up

1

236

Risk Ratio (M‐H, Fixed, 95% CI)

1.19 [1.04, 1.36]

2.4 At 10 years' follow‐up

1

189

Risk Ratio (M‐H, Fixed, 95% CI)

1.11 [0.95, 1.30]

3 Duration of operation (minutes) Show forest plot

Other data

No numeric data

4 Operative difficulties Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

4.1 Equipment failure

1

263

Risk Ratio (M‐H, Fixed, 95% CI)

3.81 [1.09, 13.34]

4.2 Procedure abandoned

1

263

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.31, 3.50]

5 Proportion given local anaesthesia Show forest plot

1

315

Risk Ratio (M‐H, Fixed, 95% CI)

2.54 [1.73, 3.72]

6 Duration of hospital stay (hours) Show forest plot

Other data

No numeric data

7 Inability to work (proportion of women) Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

7.1 At 12 months' follow‐up

1

240

Risk Ratio (M‐H, Fixed, 95% CI)

0.53 [0.17, 1.73]

7.2 At > 5 years' follow‐up

1

189

Risk Ratio (M‐H, Fixed, 95% CI)

1.52 [0.26, 8.87]

8 Quality of life ‐ change in SF‐36 score after treatment Show forest plot

Other data

No numeric data

8.1 Physical functioning

Other data

No numeric data

8.2 Social functioning

Other data

No numeric data

8.3 Physical role

Other data

No numeric data

8.4 Emotional role

Other data

No numeric data

8.5 Mental health

Other data

No numeric data

8.6 Energy/fatigue

Other data

No numeric data

8.7 Pain

Other data

No numeric data

8.8 General health

Other data

No numeric data

9 Improvement in other menstrual symptoms: PMS Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

9.1 At 1 year follow‐up

1

240

Risk Ratio (M‐H, Fixed, 95% CI)

1.03 [0.90, 1.19]

9.2 At 2 to 5 years' follow‐up

1

236

Risk Ratio (M‐H, Fixed, 95% CI)

1.12 [0.97, 1.28]

10 Improvement in other menstrual symptoms Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

10.1 Improvement in dysmenorrhoea at 1 year follow‐up

2

533

Risk Ratio (M‐H, Fixed, 95% CI)

0.98 [0.89, 1.09]

10.2 Improvement in dysmenorrhoea at 2 years' follow‐up

1

249

Risk Ratio (M‐H, Fixed, 95% CI)

1.05 [0.93, 1.19]

11 Reduction in pain score (points) Show forest plot

1

189

Mean Difference (IV, Fixed, 95% CI)

‐0.80 [‐4.32, 2.72]

11.1 At > 5 years' follow‐up

1

189

Mean Difference (IV, Fixed, 95% CI)

‐0.80 [‐4.32, 2.72]

12 Postoperative analgesia rate Show forest plot

1

263

Risk Ratio (M‐H, Fixed, 95% CI)

0.94 [0.81, 1.10]

13 Complication rate: major complications Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

13.1 Perforation

2

585

Risk Ratio (M‐H, Fixed, 95% CI)

1.63 [0.22, 12.12]

13.2 Cervical laceration

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

0.50 [0.07, 3.48]

13.3 Cervical stenosis

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

1.5 [0.06, 36.52]

13.4 Endometritis

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

6.5 [0.37, 114.31]

14 Complication rate: minor complications Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

14.1 Chills

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

1.35 [0.59, 3.11]

14.2 Bloating

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

0.83 [0.38, 1.83]

14.3 Dysuria

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

0.77 [0.37, 1.58]

14.4 Fever

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

2.5 [0.12, 51.62]

14.5 Headache

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

0.75 [0.22, 2.59]

14.6 Nausea

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

1.35 [0.83, 2.21]

14.7 Vomiting

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

3.61 [1.30, 10.00]

14.8 UTI

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

0.50 [0.03, 7.88]

14.9 Vaginal infection

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

1.5 [0.06, 36.52]

14.10 Uterine cramping

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

1.21 [1.01, 1.44]

14.11 Abdominal tenderness

1

322

Risk Ratio (M‐H, Fixed, 95% CI)

0.61 [0.26, 1.42]

14.12 Haemorrhage

1

263

Risk Ratio (M‐H, Fixed, 95% CI)

0.09 [0.01, 1.69]

15 Requirement for further surgery Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

15.1 At 1 year follow‐up (any surgery)

1

240

Risk Ratio (M‐H, Fixed, 95% CI)

0.82 [0.38, 1.80]

15.2 At 1 year follow‐up (hysterectomy only)

2

562

Risk Ratio (M‐H, Fixed, 95% CI)

0.77 [0.35, 1.70]

15.3 At 2 years' follow‐up (any surgery)

1

249

Risk Ratio (M‐H, Fixed, 95% CI)

0.97 [0.55, 1.72]

15.4 At 2 years' follow‐up (hysterectomy only)

1

249

Risk Ratio (M‐H, Fixed, 95% CI)

0.95 [0.50, 1.81]

15.5 At 5 years' follow‐up (ablation or hysterectomy)

1

263

Risk Ratio (M‐H, Fixed, 95% CI)

0.85 [0.56, 1.27]

15.6 At 5 years' follow‐up (hysterectomy only)

1

263

Risk Ratio (M‐H, Fixed, 95% CI)

0.63 [0.38, 1.04]

15.7 At 10 years' follow‐up (ablation or hysterectomy)

1

263

Risk Ratio (M‐H, Fixed, 95% CI)

0.84 [0.57, 1.23]

15.8 At 10 years' follow‐up (hysterectomy only)

1

263

Risk Ratio (M‐H, Fixed, 95% CI)

0.60 [0.38, 0.96]

Figures and Tables -
Comparison 8. Microwave ablation (second generation) versus TCRE + rollerball (first generation)
Comparison 9. Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Amenorrhoea at 1 year follow‐up

2

259

Risk Ratio (M‐H, Fixed, 95% CI)

0.62 [0.39, 1.00]

1.2 Amenorrhoea at 2 years' follow‐up

1

227

Risk Ratio (M‐H, Fixed, 95% CI)

0.60 [0.33, 1.07]

1.3 Amenorrhoea at 2 to 5 years' follow‐up

1

122

Risk Ratio (M‐H, Fixed, 95% CI)

0.7 [0.39, 1.25]

1.4 Amenorrhoea/eumenorrhoea rate at 1 year follow‐up

2

259

Risk Ratio (M‐H, Fixed, 95% CI)

0.95 [0.86, 1.06]

1.5 Amenorrhoea/eumenorrhoea rate at 2 years' follow‐up

1

227

Risk Ratio (M‐H, Fixed, 95% CI)

0.99 [0.91, 1.08]

1.6 Amenorrhoea/eumenorrhoea rate at 2 to 5 years' follow‐up

1

122

Risk Ratio (M‐H, Fixed, 95% CI)

0.98 [0.91, 1.06]

2 PBAC score after treatment Show forest plot

Other data

No numeric data

2.1 At 1 year follow‐up

Other data

No numeric data

2.2 At 2 years' follow‐up

Other data

No numeric data

3 Success of treatment (lighter periods and no further surgery) Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

3.1 At 2 to 5 years' follow‐up

1

170

Risk Ratio (M‐H, Fixed, 95% CI)

0.98 [0.80, 1.20]

4 Success of treatment (menstrual score < 185) Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

4.1 At 1 year follow‐up

1

129

Risk Ratio (M‐H, Fixed, 95% CI)

1.00 [0.83, 1.20]

4.2 At 2 years' follow‐up

1

121

Risk Ratio (M‐H, Fixed, 95% CI)

1.01 [0.83, 1.23]

5 Rate of satisfaction Show forest plot

3

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

5.1 At 1 year follow‐up

2

259

Risk Ratio (M‐H, Fixed, 95% CI)

0.97 [0.93, 1.01]

5.2 At 2 years' follow‐up

2

348

Risk Ratio (M‐H, Fixed, 95% CI)

1.02 [0.93, 1.12]

5.3 At 2 to 5 years' follow‐up

1

122

Risk Ratio (M‐H, Fixed, 95% CI)

0.93 [0.87, 1.01]

6 Duration of operation (minutes) Show forest plot

2

378

Mean Difference (IV, Fixed, 95% CI)

‐14.58 [‐15.00, ‐12.17]

7 Operative difficulties Show forest plot

1

139

Risk Ratio (M‐H, Fixed, 95% CI)

1.05 [0.49, 2.22]

7.1 Technical complication rate

1

139

Risk Ratio (M‐H, Fixed, 95% CI)

1.05 [0.49, 2.22]

8 Inability to work (proportion of women) Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

8.1 At 1 year follow‐up

1

239

Risk Ratio (M‐H, Fixed, 95% CI)

1.52 [0.37, 6.22]

8.2 At 2 years' follow‐up

1

227

Risk Ratio (M‐H, Fixed, 95% CI)

0.29 [0.03, 2.72]

8.3 At 2 to 5 years' follow‐up

1

210

Risk Ratio (M‐H, Fixed, 95% CI)

0.87 [0.26, 2.93]

9 Improvement in other menstrual symptoms Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

9.1 Improvement in dysmenorrhoea at 12 months

1

239

Risk Ratio (M‐H, Fixed, 95% CI)

0.93 [0.80, 1.09]

9.2 Improvement in premenstrual symptoms (from moderate/severe) at 1 year follow‐up

1

185

Risk Ratio (M‐H, Fixed, 95% CI)

0.94 [0.74, 1.19]

9.3 Improvement in premenstrual symptoms (from moderate/severe) at 2 years follow up

1

177

Risk Ratio (M‐H, Fixed, 95% CI)

1.03 [0.82, 1.29]

9.4 Improvement in premenstrual symptoms (from moderate/severe) at 2 to 5 years' follow‐up

1

166

Risk Ratio (M‐H, Fixed, 95% CI)

0.99 [0.75, 1.30]

10 Complication rate: major complications Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

10.1 Fluid overload

1

239

Risk Ratio (M‐H, Fixed, 95% CI)

0.18 [0.01, 3.76]

10.2 Perforation

2

378

Risk Ratio (M‐H, Fixed, 95% CI)

0.17 [0.02, 1.42]

10.3 Cervical lacerations

2

378

Risk Ratio (M‐H, Fixed, 95% CI)

0.17 [0.02, 1.42]

10.4 Endometritis

1

239

Risk Ratio (M‐H, Fixed, 95% CI)

2.74 [0.29, 25.93]

10.5 Haematometra

1

239

Risk Ratio (M‐H, Fixed, 95% CI)

0.30 [0.01, 7.39]

11 Complication rate: minor complications Show forest plot

2

895

Odds Ratio (M‐H, Fixed, 95% CI)

0.99 [0.32, 3.12]

11.1 UTI

1

239

Odds Ratio (M‐H, Fixed, 95% CI)

2.76 [0.11, 68.41]

11.2 Hydrosalpinx

1

239

Odds Ratio (M‐H, Fixed, 95% CI)

0.30 [0.01, 7.47]

11.3 Pain

1

139

Odds Ratio (M‐H, Fixed, 95% CI)

5.87 [0.30, 115.87]

11.4 Nausea

1

139

Odds Ratio (M‐H, Fixed, 95% CI)

0.26 [0.01, 6.61]

11.5 Infection

1

139

Odds Ratio (M‐H, Fixed, 95% CI)

0.26 [0.01, 6.61]

12 Requirement for further surgery Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

12.1 At 1 year follow‐up (any surgery)

1

239

Risk Ratio (M‐H, Fixed, 95% CI)

0.61 [0.10, 3.57]

12.2 At 2 years' follow‐up (any surgery)

2

392

Risk Ratio (M‐H, Fixed, 95% CI)

0.67 [0.35, 1.28]

12.3 At 2 to 5 years' follow‐up (any surgery)

1

122

Risk Ratio (M‐H, Fixed, 95% CI)

1.0 [0.64, 1.55]

12.4 At 2 years' follow‐up (hysterectomy)

1

137

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.38, 2.83]

12.5 At 2 to 5 years' follow‐up (hysterectomy)

1

122

Risk Ratio (M‐H, Fixed, 95% CI)

1.0 [0.61, 1.63]

Figures and Tables -
Comparison 9. Balloon endometrial ablation (second generation) versus rollerball endometrial ablation (first generation)
Comparison 10. Balloon (second generation) versus laser (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Amenorrhoea at 6 months' follow‐up

1

70

Risk Ratio (M‐H, Fixed, 95% CI)

1.11 [0.61, 2.02]

1.2 Amenorrhoea at 12 months' follow‐up

1

67

Risk Ratio (M‐H, Fixed, 95% CI)

0.75 [0.38, 1.46]

2 PBAC score after treatment Show forest plot

Other data

No numeric data

2.1 At 6 months' follow‐up

Other data

No numeric data

3 Rate of satisfaction Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

3.1 At 6 months' follow‐up

1

69

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.91, 1.20]

3.2 At 12 months' follow‐up

1

57

Risk Ratio (M‐H, Fixed, 95% CI)

0.97 [0.86, 1.09]

4 Operative difficulties Show forest plot

1

70

Risk Ratio (M‐H, Fixed, 95% CI)

4.47 [0.22, 89.94]

4.1 Failure of equipment

1

70

Risk Ratio (M‐H, Fixed, 95% CI)

4.47 [0.22, 89.94]

5 Pain score 4 hours post procedure Show forest plot

1

70

Mean Difference (IV, Fixed, 95% CI)

32.7 [23.72, 41.68]

6 Quality of life Show forest plot

1

Mean Difference (IV, Fixed, 95% CI)

Subtotals only

6.1 EQ‐5D at 6 months' follow‐up

1

70

Mean Difference (IV, Fixed, 95% CI)

0.01 [‐0.11, 0.13]

6.2 EQ‐5D VAS at 6 months' follow‐up

1

70

Mean Difference (IV, Fixed, 95% CI)

1.20 [‐5.95, 8.35]

6.3 SF‐12 physical scale at 6 months' follow‐up

1

70

Mean Difference (IV, Fixed, 95% CI)

1.70 [‐2.18, 5.58]

6.4 SF‐12 mental scale at 6 months' follow‐up

1

70

Mean Difference (IV, Fixed, 95% CI)

3.40 [‐0.42, 7.22]

6.5 SAQ pleasure scale at 6 months' follow‐up

1

70

Mean Difference (IV, Fixed, 95% CI)

0.5 [‐1.30, 2.30]

6.6 SAQ habit scale at 6 months' follow‐up

1

70

Mean Difference (IV, Fixed, 95% CI)

‐0.16 [‐0.42, 0.10]

6.7 SAQ discomfort scale at 6 months' follow‐up

1

70

Mean Difference (IV, Fixed, 95% CI)

‐0.14 [‐0.98, 0.70]

6.8 EQ‐5D at 12 months' follow‐up

1

67

Mean Difference (IV, Fixed, 95% CI)

‐0.01 [‐0.13, 0.11]

6.9 EQ‐5D VAS at 12 months' follow‐up

1

67

Mean Difference (IV, Fixed, 95% CI)

10.10 [2.43, 17.77]

6.10 SF‐12 physical scale at 12 months' follow‐up

1

67

Mean Difference (IV, Fixed, 95% CI)

‐0.20 [‐3.89, 3.49]

6.11 SF‐12 mental scale at 12 months' follow‐up

1

67

Mean Difference (IV, Fixed, 95% CI)

2.10 [‐2.04, 6.24]

6.12 SAQ pleasure scale at 12 months' follow‐up

1

67

Mean Difference (IV, Fixed, 95% CI)

‐0.60 [‐2.68, 1.48]

6.13 SAQ habit scale at 12 months' follow‐up

1

67

Mean Difference (IV, Fixed, 95% CI)

‐0.09 [‐0.27, 0.09]

6.14 SAQ discomfort scale at 12 months' follow‐up

1

67

Mean Difference (IV, Fixed, 95% CI)

0.10 [‐0.67, 0.87]

7 Improvement in other menstrual symptoms Show forest plot

Other data

No numeric data

7.1 PMS at 6 months' follow‐up

Other data

No numeric data

7.2 PMS at 12 months' follow‐up

Other data

No numeric data

8 Improvement in other menstrual symptoms: dysmenorrhoea (visual analogue) Show forest plot

Other data

No numeric data

8.1 Dysmenorrhoea at 6 months' follow‐up

Other data

No numeric data

8.2 Dysmenorrhoea at 12 months' follow‐up

Other data

No numeric data

9 Requirement for further surgery Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

9.1 At 12 months' follow‐up

1

67

Risk Ratio (M‐H, Fixed, 95% CI)

0.78 [0.23, 2.64]

Figures and Tables -
Comparison 10. Balloon (second generation) versus laser (first generation)
Comparison 11. Balloon (second generation) versus TCRE (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Amenorrhoea at 6 months' follow‐up

1

49

Risk Ratio (M‐H, Fixed, 95% CI)

0.95 [0.31, 2.93]

1.2 Amenorrhoea at 12 months' follow‐up

1

45

Risk Ratio (M‐H, Fixed, 95% CI)

1.21 [0.50, 2.95]

2 Rate of satisfaction Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

2.1 At 6 months' follow‐up

1

50

Risk Ratio (M‐H, Fixed, 95% CI)

1.06 [0.93, 1.20]

2.2 At 12 months' follow‐up

2

122

Risk Ratio (M‐H, Fixed, 95% CI)

1.06 [0.96, 1.18]

2.3 At 2 years' follow‐up

1

68

Risk Ratio (M‐H, Fixed, 95% CI)

1.35 [1.06, 1.72]

3 Duration of operation (minutes) Show forest plot

1

82

Mean Difference (IV, Fixed, 95% CI)

‐13.0 [‐15.20, ‐10.80]

4 Duration of operation (minutes) Show forest plot

Other data

No numeric data

5 Operative difficulties Show forest plot

1

51

Risk Ratio (M‐H, Fixed, 95% CI)

7.22 [0.42, 123.83]

5.1 Equipment failure

1

51

Risk Ratio (M‐H, Fixed, 95% CI)

7.22 [0.42, 123.83]

6 Postoperative pain (continuous data) Show forest plot

1

82

Mean Difference (IV, Fixed, 95% CI)

‐0.60 [‐0.88, ‐0.32]

7 Postoperative pain (descriptive data) Show forest plot

Other data

No numeric data

8 Hospital stay (days) Show forest plot

1

82

Mean Difference (IV, Fixed, 95% CI)

‐0.30 [‐0.52, ‐0.08]

9 Duration of hospital stay (hours) Show forest plot

Other data

No numeric data

10 Return to normal activities (days) Show forest plot

1

82

Mean Difference (IV, Fixed, 95% CI)

‐2.10 [‐3.38, ‐0.82]

11 Return to normal activities (days) Show forest plot

Other data

No numeric data

12 Complication rate: major complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

12.1 Fluid overload

1

82

Risk Ratio (M‐H, Fixed, 95% CI)

0.10 [0.01, 1.67]

12.2 Cervical tear

1

82

Risk Ratio (M‐H, Fixed, 95% CI)

0.35 [0.01, 8.34]

12.3 Conversion to hysterectomy

1

88

Risk Ratio (M‐H, Fixed, 95% CI)

0.24 [0.01, 4.84]

12.4 Blood transfusion

1

82

Risk Ratio (M‐H, Fixed, 95% CI)

5.24 [0.26, 105.97]

13 Complication rate: minor complications Show forest plot

1

82

Mean Difference (IV, Fixed, 95% CI)

‐81.8 [‐93.33, ‐70.27]

13.1 Blood loss

1

82

Mean Difference (IV, Fixed, 95% CI)

‐81.8 [‐93.33, ‐70.27]

14 Complication rate: minor complications (dichotomous) Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

14.1 Fever

1

82

Risk Ratio (M‐H, Fixed, 95% CI)

0.53 [0.05, 5.57]

14.2 Urinary infection or retention

1

82

Risk Ratio (M‐H, Fixed, 95% CI)

0.35 [0.01, 8.34]

14.3 Haemorrhage

1

82

Risk Ratio (M‐H, Fixed, 95% CI)

1.31 [0.38, 4.54]

15 Requirement for further surgery Show forest plot

2

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

15.1 At 12 months' follow‐up (ablation and hysterectomy)

1

75

Risk Ratio (M‐H, Fixed, 95% CI)

0.51 [0.10, 2.64]

15.2 At 2 years' follow‐up (ablation and hysterectomy)

1

68

Risk Ratio (M‐H, Fixed, 95% CI)

0.38 [0.08, 1.81]

15.3 At 12 months' follow‐up (hysterectomy only)

1

45

Risk Ratio (M‐H, Fixed, 95% CI)

0.12 [0.01, 2.44]

Figures and Tables -
Comparison 11. Balloon (second generation) versus TCRE (first generation)
Comparison 12. Bipolar radiofrequency (second generation) versus balloon ablation (second generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

4

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Amenorrhoea at 6 months' follow‐up

3

283

Risk Ratio (M‐H, Fixed, 95% CI)

3.37 [2.09, 5.44]

1.2 Amenorrhoea at 12 months' follow‐up

4

335

Risk Ratio (M‐H, Fixed, 95% CI)

3.12 [2.06, 4.72]

1.3 Amenorrhoea at 2 to 5 years' follow‐up

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

1.56 [0.93, 2.64]

1.4 Amenorrhoea at 10 years' follow‐up

1

104

Risk Ratio (M‐H, Fixed, 95% CI)

1.10 [0.83, 1.46]

2 PBAC score after treatment Show forest plot

Other data

No numeric data

2.1 At 6 months' follow‐up

Other data

No numeric data

2.2 At 12 months' follow‐up

Other data

No numeric data

3 Rate of satisfaction Show forest plot

4

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

3.1 At 6 months' follow‐up

2

181

Risk Ratio (M‐H, Fixed, 95% CI)

1.08 [0.94, 1.24]

3.2 At 12 months' follow‐up

4

334

Risk Ratio (M‐H, Fixed, 95% CI)

1.14 [1.04, 1.26]

3.3 At 10 years' follow‐up

1

104

Risk Ratio (M‐H, Fixed, 95% CI)

1.05 [0.85, 1.30]

4 Duration of operation Show forest plot

Other data

No numeric data

5 Operative difficulties Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

5.1 Technical complication rate

1

55

Risk Ratio (M‐H, Fixed, 95% CI)

0.73 [0.13, 3.99]

6 Completion of procedure Show forest plot

1

81

Risk Ratio (M‐H, Fixed, 95% CI)

1.05 [0.97, 1.15]

7 Time taken off work (days) Show forest plot

Other data

No numeric data

8 Time to resume normal activities (days) Show forest plot

Other data

No numeric data

9 Quality of life Show forest plot

3

3221

Mean Difference (IV, Fixed, 95% CI)

0.00 [‐0.18, 0.19]

9.1 SF‐12 physical scale score at 12 months' follow‐up

1

55

Mean Difference (IV, Fixed, 95% CI)

1.60 [‐4.27, 7.47]

9.2 SF‐12 mental scale score at 12 months' follow‐up

1

55

Mean Difference (IV, Fixed, 95% CI)

7.5 [‐0.52, 15.52]

9.3 SF‐36 physical function scale score at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

2.0 [‐6.55, 10.55]

9.4 SF‐36 physical function scale score at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

3.0 [‐6.44, 12.44]

9.5 SF‐36 physical function scale score at 2 to 5 years' follow‐up

1

98

Mean Difference (IV, Fixed, 95% CI)

2.0 [‐8.26, 12.26]

9.6 SF‐36 role physical at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

5.0 [‐7.67, 17.67]

9.7 SF‐36 role physical at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

5.0 [‐6.96, 16.96]

9.8 SF‐36 role physical at 2 to 5 years' follow‐up

1

98

Mean Difference (IV, Fixed, 95% CI)

8.0 [‐2.66, 18.66]

9.9 SF‐36 role emotional at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

‐6.0 [‐18.64, 6.64]

9.10 SF‐36 role emotional at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

4.0 [‐1.92, 9.92]

9.11 SF‐36 role emotional at 2 to 5 years' follow‐up

1

98

Mean Difference (IV, Fixed, 95% CI)

‐9.0 [‐14.45, ‐3.55]

9.12 SF‐36 social functioning at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

‐1.0 [‐9.98, 7.98]

9.13 SF‐36 social functioning at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

3.0 [‐6.17, 12.17]

9.14 SF‐36 social functioning at 2 to 5 years' follow‐up

1

98

Mean Difference (IV, Fixed, 95% CI)

4.0 [‐5.60, 13.60]

9.15 SF‐36 mental health at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

‐3.0 [‐10.84, 4.84]

9.16 SF‐36 mental health at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

0.0 [‐8.03, 8.03]

9.17 SF‐36 mental health at 2 to 5 years' follow‐up

1

98

Mean Difference (IV, Fixed, 95% CI)

‐5.0 [‐11.39, 1.39]

9.18 SF‐36 energy/vitality at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

‐6.0 [‐13.54, 1.54]

9.19 SF‐36 energy/vitality at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

9.0 [‐0.44, 18.44]

9.20 SF‐36 energy/vitality at 2 to 5 years' follow‐up

1

98

Mean Difference (IV, Fixed, 95% CI)

‐3.0 [‐10.39, 4.39]

9.21 SF‐36 pain at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

2.0 [‐6.00, 12.00]

9.22 SF‐36 pain at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

‐1.0 [‐12.61, 10.61]

9.23 SF‐36 pain at 2 to 5 years' follow‐up

1

98

Mean Difference (IV, Fixed, 95% CI)

‐5.0 [‐14.79, 4.79]

9.24 SF‐36 general health at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

‐5.0 [‐13.30, 3.30]

9.25 SF‐36 general health at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

6.0 [‐4.10, 16.10]

9.26 SF‐36 general health at 2 to 5 years' follow‐up

1

98

Mean Difference (IV, Fixed, 95% CI)

6.0 [‐5.72, 17.72]

9.27 RSCL physical symptoms at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

1.0 [‐3.94, 5.94]

9.28 RSCL physical symptoms at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

‐4.0 [‐8.56, 0.56]

9.29 RSCL psychological distress at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

‐1.0 [‐10.14, 8.14]

9.30 RSCL psychological distress at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

‐1.0 [‐7.92, 5.92]

9.31 RSCL activity level at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

‐1.0 [‐3.35, 1.35]

9.32 RSCL activity level at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

‐2.0 [‐4.32, 0.32]

9.33 RSCL overall quality of life at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

‐2.0 [‐12.29, 8.29]

9.34 RSCL overall quality of life at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

‐9.0 [‐18.77, 0.77]

9.35 SDS depression at 6 months' follow‐up

1

90

Mean Difference (IV, Fixed, 95% CI)

2.0 [‐1.55, 5.55]

9.36 SDS depression at 12 months' follow‐up

1

78

Mean Difference (IV, Fixed, 95% CI)

‐1.0 [‐5.24, 3.24]

9.37 Multi‐attribute utility tool at 12 months' follow‐up

1

51

Mean Difference (IV, Fixed, 95% CI)

8.80 [‐6.08, 23.68]

9.38 EQ‐5D utility at 12 months' follow‐up

1

49

Mean Difference (IV, Fixed, 95% CI)

0.03 [‐0.16, 0.22]

9.39 EQ‐5D health thermometer at 12 months' follow‐up

1

43

Mean Difference (IV, Fixed, 95% CI)

4.8 [‐10.07, 19.67]

10 Menorrhagia Outcome Questionnaire Show forest plot

1

51

Mean Difference (IV, Fixed, 95% CI)

‐0.60 [‐3.87, 2.67]

10.1 At 12 months' follow‐up

1

51

Mean Difference (IV, Fixed, 95% CI)

‐0.60 [‐3.87, 2.67]

11 Dysmenorrhoea rate (VAS score) Show forest plot

Other data

No numeric data

11.1 At 12 months' follow‐up

Other data

No numeric data

12 Improvement in other menstrual symptoms Show forest plot

2

465

Risk Ratio (M‐H, Fixed, 95% CI)

0.91 [0.70, 1.20]

12.1 Improvement in dysmenorrhoea at 12 months' follow‐up

1

44

Risk Ratio (M‐H, Fixed, 95% CI)

1.37 [0.89, 2.10]

12.2 Improvement in PMS (emotional) at 12 months' follow‐up

1

36

Risk Ratio (M‐H, Fixed, 95% CI)

0.8 [0.45, 1.43]

12.3 Improvement in PMS (physical) at 12 months' follow‐up

1

36

Risk Ratio (M‐H, Fixed, 95% CI)

1.3 [0.72, 2.34]

12.4 Dysmenorrhoea rate at 6 months' follow‐up

1

126

Risk Ratio (M‐H, Fixed, 95% CI)

0.69 [0.26, 1.86]

12.5 Dysmenorrhoea rate at 12 months' follow‐up

1

126

Risk Ratio (M‐H, Fixed, 95% CI)

0.52 [0.18, 1.51]

12.6 Dysmenorrhoea rate at 2 to 5 years' follow‐up

1

97

Risk Ratio (M‐H, Fixed, 95% CI)

0.61 [0.26, 1.44]

13 PMS rate (VAS score) Show forest plot

Other data

No numeric data

13.1 At 12 months' follow‐up

Other data

No numeric data

14 Complication rate: major complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

14.1 Infection (endometritis)

1

73

Risk Ratio (M‐H, Fixed, 95% CI)

0.30 [0.06, 1.42]

15 Requirement for further surgery Show forest plot

4

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

15.1 At 6 months' follow‐up (ablation or hysterectomy)

1

53

Risk Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

15.2 At 12 months' follow‐up (ablation or hysterectomy)

3

239

Risk Ratio (M‐H, Fixed, 95% CI)

1.35 [0.49, 3.67]

15.3 At 12 months' follow‐up (hysterectomy only)

3

311

Risk Ratio (M‐H, Fixed, 95% CI)

0.72 [0.28, 1.84]

15.4 At 2 to 5 years' follow‐up (ablation or hysterectomy)

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

0.72 [0.28, 1.89]

15.5 At 2 to 5 years' follow‐up (hysterectomy only)

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

0.77 [0.27, 2.20]

15.6 At 10 years' follow‐up (hysterectomy only)

1

104

Risk Ratio (M‐H, Fixed, 95% CI)

1.01 [0.38, 2.74]

Figures and Tables -
Comparison 12. Bipolar radiofrequency (second generation) versus balloon ablation (second generation)
Comparison 13. Microwave ablation (second generation) versus balloon ablation (second generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Amenorrhoea at 6 months' follow‐up

1

277

Risk Ratio (M‐H, Fixed, 95% CI)

1.50 [1.07, 2.12]

1.2 Amenorrhoea at 12 months' follow‐up

1

282

Risk Ratio (M‐H, Fixed, 95% CI)

1.10 [0.82, 1.47]

1.3 Amenorrhoea at 5 years' follow‐up

1

217

Risk Ratio (M‐H, Fixed, 95% CI)

1.03 [0.86, 1.23]

2 PBAC score at 12 months' follow‐up Show forest plot

Other data

No numeric data

3 Rate of satisfaction Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

3.1 At 12 months' follow‐up

1

278

Risk Ratio (M‐H, Fixed, 95% CI)

1.00 [0.88, 1.14]

3.2 At 5 years' follow‐up

1

217

Risk Ratio (M‐H, Fixed, 95% CI)

0.99 [0.87, 1.13]

4 Operation time (minutes) Show forest plot

1

314

Mean Difference (IV, Fixed, 95% CI)

‐6.60 [‐7.36, ‐5.84]

5 Operative difficulties causing failure Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

5.1 Failure of device

1

314

Risk Ratio (M‐H, Fixed, 95% CI)

0.09 [0.01, 0.70]

5.2 Unsuitable cavity

1

314

Risk Ratio (M‐H, Fixed, 95% CI)

0.75 [0.17, 3.30]

5.3 Device not sterile

1

314

Risk Ratio (M‐H, Fixed, 95% CI)

5.0 [0.24, 103.32]

6 Proportion choosing local anaesthesia Show forest plot

1

314

Risk Ratio (M‐H, Fixed, 95% CI)

1.01 [0.79, 1.31]

7 Proportion requiring opiate analgesia Show forest plot

1

314

Risk Ratio (M‐H, Fixed, 95% CI)

0.92 [0.83, 1.01]

8 Recovery: proportion requiring overnight stay Show forest plot

1

314

Risk Ratio (M‐H, Fixed, 95% CI)

0.66 [0.42, 1.04]

9 Quality of life scores Show forest plot

1

Mean Difference (IV, Fixed, 95% CI)

Subtotals only

9.1 EQ‐5D at 12 months' follow‐up

1

285

Mean Difference (IV, Fixed, 95% CI)

0.02 [‐0.04, 0.08]

9.2 EQ‐5D at 5 years' follow‐up

1

217

Mean Difference (IV, Fixed, 95% CI)

0.0 [‐0.07, 0.07]

9.3 SF‐12 physical scores at 12 months' follow‐up

1

285

Mean Difference (IV, Fixed, 95% CI)

‐0.70 [‐2.64, 1.24]

9.4 SF‐12 physical scores at 5 years' follow‐up

1

217

Mean Difference (IV, Fixed, 95% CI)

‐1.5 [‐3.99, 0.99]

9.5 SF‐12 mental scores at 12 months' follow‐up

1

285

Mean Difference (IV, Fixed, 95% CI)

‐1.20 [‐3.67, 1.27]

9.6 SF‐12 mental scores at 5 years' follow‐up

1

217

Mean Difference (IV, Fixed, 95% CI)

‐0.30 [‐2.90, 2.30]

10 Requirement for further surgery (hysterectomy) Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

10.1 At 12 months' follow‐up

1

285

Risk Ratio (M‐H, Fixed, 95% CI)

0.94 [0.31, 2.84]

10.2 At 5 years' follow‐up

1

217

Risk Ratio (M‐H, Fixed, 95% CI)

1.29 [0.51, 3.27]

Figures and Tables -
Comparison 13. Microwave ablation (second generation) versus balloon ablation (second generation)
Comparison 14. Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Amenorrhoea at 6 months' follow‐up

1

150

Risk Ratio (M‐H, Fixed, 95% CI)

2.27 [1.25, 4.12]

1.2 Amenorrhoea at 12 months' follow‐up

1

146

Risk Ratio (M‐H, Fixed, 95% CI)

1.95 [1.21, 3.15]

1.3 Amenorrhoea at 2 to 5 years' follow‐up

1

139

Risk Ratio (M‐H, Fixed, 95% CI)

1.57 [1.06, 2.31]

2 Rate of satisfaction Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

2.1 At 6 months' follow‐up

1

150

Risk Ratio (M‐H, Fixed, 95% CI)

1.44 [1.17, 1.77]

2.2 At 12 months' follow‐up

1

146

Risk Ratio (M‐H, Fixed, 95% CI)

1.11 [1.02, 1.21]

2.3 At 2 to 5 years' follow‐up

1

139

Risk Ratio (M‐H, Fixed, 95% CI)

1.62 [1.23, 2.13]

3 Duration of procedure (minutes) Show forest plot

Other data

No numeric data

4 Improvement in other menstrual symptoms Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

4.1 Absence of dysmenorrhoea at 12 months' follow‐up

1

146

Risk Ratio (M‐H, Fixed, 95% CI)

0.92 [0.79, 1.06]

4.2 Absence of dysmenorrhoea at 2 to 5 years' follow‐up

1

139

Risk Ratio (M‐H, Fixed, 95% CI)

1.32 [1.00, 1.74]

5 Complication rate: major complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

5.1 Uterine perforation

1

156

Risk Ratio (M‐H, Fixed, 95% CI)

2.71 [0.11, 65.54]

5.2 Saline leakage

1

156

Risk Ratio (M‐H, Fixed, 95% CI)

0.13 [0.01, 2.46]

6 Requirement for further surgery Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

6.1 At 12 months' follow‐up (ablation or hysterectomy)

1

160

Risk Ratio (M‐H, Fixed, 95% CI)

0.28 [0.11, 0.72]

6.2 At 12 months' follow‐up (hysterectomy)

1

160

Risk Ratio (M‐H, Fixed, 95% CI)

0.42 [0.14, 1.32]

6.3 At 2 to 5 years' follow‐up (ablation or hysterectomy)

1

136

Risk Ratio (M‐H, Fixed, 95% CI)

0.44 [0.23, 0.83]

6.4 At 2 to 5 years' follow‐up (hysterectomy)

1

136

Risk Ratio (M‐H, Fixed, 95% CI)

0.63 [0.29, 1.38]

Figures and Tables -
Comparison 14. Bipolar radiofrequency (second generation) versus hydrothermal ablation (second generation)
Comparison 15. Ablative curettage versus overcurettage

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

1

200

Risk Ratio (M‐H, Fixed, 95% CI)

2.59 [1.87, 3.58]

1.1 Amenorrhoea at 3 years' follow‐up

1

100

Risk Ratio (M‐H, Fixed, 95% CI)

4.5 [2.33, 8.69]

1.2 Amenorrhoea and eumenorrhoea at 3 years' follow‐up

1

100

Risk Ratio (M‐H, Fixed, 95% CI)

1.86 [1.30, 2.66]

2 Surgery difficulties: failure rate of procedure Show forest plot

1

100

Risk Ratio (M‐H, Fixed, 95% CI)

0.29 [0.12, 0.74]

3 Recovery: hospital stay (days) Show forest plot

1

100

Mean Difference (IV, Fixed, 95% CI)

1.6 [1.18, 2.02]

4 Complication rate: major complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

4.1 Uterine perforation

1

100

Risk Ratio (M‐H, Fixed, 95% CI)

0.14 [0.01, 2.70]

5 Complication rate: minor complications Show forest plot

1

200

Risk Ratio (M‐H, Fixed, 95% CI)

0.37 [0.16, 0.84]

5.1 Bleeding

1

100

Risk Ratio (M‐H, Fixed, 95% CI)

0.21 [0.07, 0.70]

5.2 Infection/leucorrhoea

1

100

Risk Ratio (M‐H, Fixed, 95% CI)

0.8 [0.23, 2.81]

6 Requirement for further surgery Show forest plot

1

100

Risk Ratio (M‐H, Fixed, 95% CI)

0.42 [0.16, 1.10]

6.1 Within 3 years (hysterectomy)

1

100

Risk Ratio (M‐H, Fixed, 95% CI)

0.42 [0.16, 1.10]

Figures and Tables -
Comparison 15. Ablative curettage versus overcurettage
Comparison 16. Microwave ablation (second generation) versus bipolar radiofrequency (second generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

1

132

Odds Ratio (M‐H, Fixed, 95% CI)

7.07 [3.29, 15.22]

1.1 Amenorrhoea at 3 months' follow‐up

1

66

Odds Ratio (M‐H, Fixed, 95% CI)

5.33 [1.86, 15.30]

1.2 Amenorrhoea at 12 months' follow‐up

1

66

Odds Ratio (M‐H, Fixed, 95% CI)

9.77 [3.17, 30.11]

2 Bleeding PBAC at 12 months' follow‐up Show forest plot

1

Mean Difference (IV, Fixed, 95% CI)

Subtotals only

3 Rate of satisfaction Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

3.1 Satisfaction ‐ with treatment at 3 months' follow‐up

1

66

Risk Ratio (M‐H, Fixed, 95% CI)

0.97 [0.89, 1.05]

3.2 Satisfaction ‐ with treatment at 12 months' follow‐up

1

66

Risk Ratio (M‐H, Fixed, 95% CI)

0.85 [0.73, 0.99]

3.3 Satisfaction ‐ improvement in everyday life at 12 months' follow‐up

1

66

Risk Ratio (M‐H, Fixed, 95% CI)

0.91 [0.81, 1.03]

4 Duration of treatment (seconds) Show forest plot

1

66

Mean Difference (IV, Fixed, 95% CI)

9.80 [2.63, 16.97]

5 Improvement in other menstrual symptoms: dysmenorrhoea Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

5.1 Dysmenorrhoea at 3 months' follow‐up

1

66

Risk Ratio (M‐H, Fixed, 95% CI)

2.0 [0.39, 10.18]

5.2 Dysmenorrhoea at 12 months' follow‐up

1

66

Risk Ratio (M‐H, Fixed, 95% CI)

4.0 [0.92, 17.44]

6 Complication rate Show forest plot

1

198

Odds Ratio (M‐H, Fixed, 95% CI)

25.98 [1.44, 468.00]

6.1 Minor complications

1

66

Odds Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

6.2 Major complications

1

66

Odds Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

6.3 Requirement for post‐procedure analgesia

1

66

Odds Ratio (M‐H, Fixed, 95% CI)

25.98 [1.44, 468.00]

7 Requirement for further surgery Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

7.1 At 12 months' follow‐up (hysterectomy)

1

66

Risk Ratio (M‐H, Fixed, 95% CI)

5.0 [0.25, 100.32]

Figures and Tables -
Comparison 16. Microwave ablation (second generation) versus bipolar radiofrequency (second generation)
Comparison 17. Bipolar (Minerva) (second generation) versus rollerball ablation (first generation)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Haematin alkaline < 80 mL/cycle at 12 months' follow‐up

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.16 [1.00, 1.34]

1.2 Amenorrhoea at 12 months' follow‐up

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.46 [1.08, 1.98]

2 Rate of satisfaction Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

2.1 At 12 months' follow‐up

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.15 [0.99, 1.33]

3 Duration of surgery Show forest plot

1

153

Mean Difference (IV, Fixed, 95% CI)

‐14.1 [‐15.94, ‐12.26]

4 Improvement in other menstrual symptoms: dysmenorrhoea Show forest plot

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.02 [0.71, 1.48]

5 Improvement in other menstrual symptoms: PMS at 12 months' follow‐up Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

6 Complication rate: major complications Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

6.1 Endometritis or endomyometritis

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

0.25 [0.02, 2.69]

6.2 Pelvic inflammatory disease

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.51 [0.06, 36.54]

6.3 Haematometra

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.51 [0.06, 36.54]

7 Complication rate: minor complications Show forest plot

1

2142

Risk Ratio (M‐H, Fixed, 95% CI)

0.62 [0.30, 1.26]

7.1 Intraoperative skin rash and/or itching or burning sensation

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.51 [0.06, 36.54]

7.2 Bleeding or spotting first 24 hours

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

0.17 [0.01, 4.06]

7.3 Nausea or vomiting first 24 hours

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

0.17 [0.01, 4.06]

7.4 Weakness, fatigue, sleepiness, lack of concentration, dizziness first 24 hours

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.51 [0.06, 36.54]

7.5 Backache first 24 hours

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.51 [0.06, 36.54]

7.6 Fever first 24 hours

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.51 [0.06, 36.54]

7.7 Abdominal pain or bloating (> 24 hours to 2 weeks)

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.5 [0.16, 14.06]

7.8 Abdominal pain and/or bloating > 2 weeks

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

0.17 [0.01, 4.06]

7.9 Pelvic pain (> 24 hours to 2 weeks)

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.51 [0.06, 36.54]

7.10 Vaginal discharge and/or unpleasant vaginal smell or other abnormal sensation (> 24 hours to 2 weeks)

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

1.51 [0.06, 36.54]

7.11 Weakness, fatigue, sleepiness, lack of concentration, dizziness (> 24 hours to 2 weeks)

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

0.5 [0.03, 7.83]

7.12 Constipation (> 24 hours to 2 weeks)

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

0.17 [0.01, 4.06]

7.13 Skin rash and/or itching or burning sensation (> 24 hours to 2 weeks)

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

0.5 [0.03, 7.83]

7.14 Dysmenorrhoea (2 weeks to 1 year)

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

0.17 [0.01, 4.06]

8 Requirement for further surgery Show forest plot

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

0.33 [0.06, 1.93]

8.1 Hysterectomy at 12 months' follow‐up

1

153

Risk Ratio (M‐H, Fixed, 95% CI)

0.33 [0.06, 1.93]

Figures and Tables -
Comparison 17. Bipolar (Minerva) (second generation) versus rollerball ablation (first generation)
Comparison 18. Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Bleeding Show forest plot

12

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

1.1 Amenorrhoea at 6 months' follow‐up

1

49

Risk Ratio (M‐H, Random, 95% CI)

1.27 [0.91, 1.77]

1.2 Amenorrhoea at 1 year follow‐up

12

2145

Risk Ratio (M‐H, Random, 95% CI)

0.99 [0.78, 1.27]

1.3 Amenorrhoea at 2 years' follow‐up

3

701

Risk Ratio (M‐H, Random, 95% CI)

0.97 [0.72, 1.30]

1.4 Amenorrhoea at 2 to 5 years' follow‐up

4

672

Risk Ratio (M‐H, Random, 95% CI)

1.16 [0.78, 1.72]

1.5 Amenorrhoea > 5 years' follow‐up

1

189

Risk Ratio (M‐H, Random, 95% CI)

0.94 [0.83, 1.05]

1.6 PBAC < 75 or acceptable improvement at 12 months' follow‐up

5

1282

Risk Ratio (M‐H, Random, 95% CI)

1.03 [0.98, 1.09]

1.7 PBAC < 75 or acceptable improvement at 2 to 5 years' follow‐up

1

236

Risk Ratio (M‐H, Random, 95% CI)

1.12 [0.97, 1.28]

1.8 PBAC < 75 or acceptable improvement at > 5 years' follow‐up

1

263

Risk Ratio (M‐H, Random, 95% CI)

1.08 [0.87, 1.34]

2 Bleeding ‐ amenorrhoea at 12 months' follow‐up (final plot) Show forest plot

12

2145

Risk Ratio (M‐H, Random, 95% CI)

0.99 [0.78, 1.27]

3 Satisfaction rate Show forest plot

13

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

3.1 At 6 months' follow‐up

1

50

Risk Ratio (M‐H, Random, 95% CI)

1.06 [0.93, 1.20]

3.2 At 1 year follow‐up

11

1750

Risk Ratio (M‐H, Random, 95% CI)

1.01 [0.98, 1.04]

3.3 At 2 years' follow‐up

5

802

Risk Ratio (M‐H, Random, 95% CI)

1.09 [0.99, 1.21]

3.4 At 2 to 5 years' follow‐up

4

672

Risk Ratio (M‐H, Random, 95% CI)

1.02 [0.93, 1.13]

3.5 At 10 years' follow‐up

1

189

Risk Ratio (M‐H, Random, 95% CI)

1.11 [0.95, 1.30]

4 Satisfaction rate at 1 year follow‐up (final plot) Show forest plot

11

1750

Risk Ratio (M‐H, Fixed, 95% CI)

1.02 [0.99, 1.05]

5 Duration of operation (minutes) Show forest plot

9

Mean Difference (IV, Random, 95% CI)

Totals not selected

6 Operative difficulties Show forest plot

5

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

6.1 Equipment failure

3

384

Risk Ratio (M‐H, Random, 95% CI)

4.26 [1.46, 12.43]

6.2 Procedure abandoned

3

629

Risk Ratio (M‐H, Random, 95% CI)

1.18 [0.38, 3.67]

7 Proportion given local anaesthesia (%) Show forest plot

6

1434

Risk Ratio (M‐H, Random, 95% CI)

2.78 [1.76, 4.40]

8 Inability to work Show forest plot

2

479

Risk Ratio (M‐H, Random, 95% CI)

0.84 [0.30, 2.30]

9 Complication rate: major complications Show forest plot

11

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

9.1 Perforation

8

1885

Risk Ratio (M‐H, Random, 95% CI)

0.32 [0.10, 1.01]

9.2 Endometritis

4

1095

Risk Ratio (M‐H, Random, 95% CI)

1.19 [0.33, 4.37]

9.3 Myometritis

1

267

Risk Ratio (M‐H, Random, 95% CI)

0.29 [0.01, 6.93]

9.4 Cervical lacerations

7

1583

Risk Ratio (M‐H, Random, 95% CI)

0.21 [0.07, 0.61]

9.5 Cervical stenosis

1

322

Risk Ratio (M‐H, Random, 95% CI)

1.5 [0.06, 36.52]

9.6 Pelvic abscess

1

265

Risk Ratio (M‐H, Random, 95% CI)

0.17 [0.01, 4.19]

9.7 Pelvic inflammatory disease

2

418

Risk Ratio (M‐H, Random, 95% CI)

1.18 [0.18, 7.98]

9.8 Haematometra

5

1193

Risk Ratio (M‐H, Random, 95% CI)

0.34 [0.12, 0.95]

9.9 Blood transfusion

1

82

Risk Ratio (M‐H, Random, 95% CI)

5.24 [0.26, 105.97]

9.10 Fluid overload

3

588

Risk Ratio (M‐H, Random, 95% CI)

0.16 [0.03, 0.94]

10 Complication rate: minor complications Show forest plot

10

6450

Risk Ratio (M‐H, Fixed, 95% CI)

1.31 [1.11, 1.54]

10.1 Nausea/vomiting

4

997

Risk Ratio (M‐H, Fixed, 95% CI)

2.01 [1.40, 2.88]

10.2 Uterine cramping

2

601

Risk Ratio (M‐H, Fixed, 95% CI)

1.21 [1.02, 1.45]

10.3 Urinary tract infection

8

1834

Risk Ratio (M‐H, Fixed, 95% CI)

0.88 [0.45, 1.73]

10.4 Fever

3

671

Risk Ratio (M‐H, Fixed, 95% CI)

0.98 [0.22, 4.26]

10.5 Haemorrhage

4

889

Risk Ratio (M‐H, Fixed, 95% CI)

0.64 [0.26, 1.58]

10.6 Muscle fasciculation

1

267

Risk Ratio (M‐H, Fixed, 95% CI)

2.57 [0.11, 62.41]

10.7 External burns (first degree)

1

269

Risk Ratio (M‐H, Fixed, 95% CI)

2.32 [0.11, 47.89]

10.8 Hydrosalpinx

1

239

Risk Ratio (M‐H, Fixed, 95% CI)

0.30 [0.01, 7.39]

10.9 Severe pelvic pain

3

683

Risk Ratio (M‐H, Fixed, 95% CI)

0.95 [0.36, 2.48]

11 Requirement for additional surgery Show forest plot

12

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

11.1 At 1 year follow‐up (ablation or hysterectomy)

6

935

Risk Ratio (M‐H, Random, 95% CI)

0.72 [0.41, 1.26]

11.2 At 1 year follow‐up (hysterectomy)

5

925

Risk Ratio (M‐H, Random, 95% CI)

0.66 [0.35, 1.21]

11.3 At 2 years' follow‐up (ablation or hysterectomy)

5

988

Risk Ratio (M‐H, Random, 95% CI)

0.83 [0.52, 1.32]

11.4 At 2 years' follow‐up (hysterectomy)

4

920

Risk Ratio (M‐H, Random, 95% CI)

0.86 [0.52, 1.42]

11.5 At 2 to 5 years' follow‐up (ablation or hysterectomy)

3

647

Risk Ratio (M‐H, Random, 95% CI)

0.95 [0.72, 1.26]

11.6 At 2 to 5 years' follow‐up (hysterectomy)

4

758

Risk Ratio (M‐H, Random, 95% CI)

0.85 [0.59, 1.22]

11.7 At 10 years' follow‐up (ablation or hysterectomy)

1

189

Risk Ratio (M‐H, Random, 95% CI)

0.57 [0.37, 0.87]

11.8 At 10 years' follow‐up (hysterectomy)

1

189

Risk Ratio (M‐H, Random, 95% CI)

0.59 [0.38, 0.91]

Figures and Tables -
Comparison 18. Overall analyses: second‐generation endometrial ablation versus first‐generation endometrial ablation