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Cochrane Database of Systematic Reviews

Presión del fondo uterino durante el período expulsivo del trabajo de parto

Información

DOI:
https://doi.org/10.1002/14651858.CD006067.pub3Copiar DOI
Base de datos:
  1. Cochrane Database of Systematic Reviews
Versión publicada:
  1. 07 marzo 2017see what's new
Tipo:
  1. Intervention
Etapa:
  1. Review
Grupo Editorial Cochrane:
  1. Grupo Cochrane de Embarazo y parto

Copyright:
  1. Copyright © 2018 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

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Autores

  • G Justus Hofmeyr

    Correspondencia a: Walter Sisulu University, University of the Witwatersrand, Eastern Cape Department of Health, East London, South Africa

    [email protected]

  • Joshua P Vogel

    UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), Department of Reproductive Health and Research, World Health Organization, Geneva, Switzerland

  • Anna Cuthbert

    Cochrane Pregnancy and Childbirth Group, Department of Women's and Children's Health, The University of Liverpool, Liverpool, UK

  • Mandisa Singata

    Effective Care Research Unit, University of the Witwatersrand/University of Fort Hare/East London Hospital complex, East London, South Africa

Contributions of authors

E Verheijen assessed the studies for inclusion, extracted data and wrote an earlier version of the review. J Raven assessed the studies for inclusion, extracted data and commented on drafts of the earlier version. GJ Hofmeyr initiated the protocol and review, designed the data‐extraction form and contributed to the development of the review by commenting on drafts.

A Cuthbert and J Vogel assessed studies for inclusion and extracted data for the current version (except for studies in which J Vogel was involved). A Cuthbert conducted the first analysis and interpretation of data for the current version. J Vogel, GJ Hofmeyr and Mandisa Singata reviewed and contributed to the interpretation and the final manuscript.

GJ Hofmeyr is now the contact person and guarantor for this review.

Sources of support

Internal sources

  • No sources of support supplied

External sources

  • UNDP‐UNFPA‐UNICEF‐WHO‐World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), Department of Reproductive Health and Research (RHR), World Health Organization, Switzerland.

Declarations of interest

GJH is an author of one included (Novikova 2009) and one ongoing study (Hofmeyr 2015), but he has not participated in assessment of or data extraction from these studies.

JV is the research project manager on the ongoing Gentle Assisted Pushing Trial (Hofmeyr 2015). No other conflicts of interest to declare.

AC is a research assistant working in the editorial base of Cochrane Pregnancy and Childbirth. She is employed by the University of Liverpool to work as a research assistant in Cochrane Pregnancy and Childbirth (who receives infrastructure funding from the NIHR, UK). She has no other conflicts of interest to declare.

MS is an author of one included (Novikova 2009) and one ongoing study (Hofmeyr 2015), but she has not participated in assessment of or data extraction from these studies.

Acknowledgements

Thanks to Caroline Summers for translating Schulz‐Lobmeyr 1999.

Thanks to Huang Kun for translating Zhao 1991.

The authors would like to acknowledge the enthusiastic contribution of Princess Jafta to the initial version of this review before her untimely death in February 2009, and this review is dedicated to her. Princess Jafta assessed the early studies for inclusion and extracted data.

The authors would also like to thank Therese Dowswell for her assistance with data extraction and support.

As part of the pre‐publication editorial process, this updated review has been commented on by three peers (an editor and two referees who are external to the editorial team), a member of Cochrane Pregnancy and Childbirth's international panel of consumers and the Group's Statistical Adviser.

This project was supported by the National Institute for Health Research, via Cochrane Infrastructure funding to Cochrane Pregnancy and Childbirth. The views and opinions expressed therein are those of the authors and do not necessarily reflect those of the Systematic Reviews Programme, NIHR, NHS or the Department of Health.

The World Health Organization, GJ Hofmeyr, A Cuthbert and M Singata retain copyright and all other rights in their respective contributions to the manuscript of this Review as submitted for publication.

We acknowledge Evelyn C Verheijen and Joanna H Raven's contribution to the to the initial version of this review (Verheijen 2009).

Version history

Published

Title

Stage

Authors

Version

2017 Mar 07

Fundal pressure during the second stage of labour

Review

G Justus Hofmeyr, Joshua P Vogel, Anna Cuthbert, Mandisa Singata

https://doi.org/10.1002/14651858.CD006067.pub3

2009 Oct 07

Fundal pressure during the second stage of labour

Review

Evelyn C Verheijen, Joanna H Raven, G Justus Hofmeyr

https://doi.org/10.1002/14651858.CD006067.pub2

2009 Jul 08

Fundal pressure for shortening the second stage of labour

Protocol

Evelyn C Verheijen, Joanna H Raven, G Justus Hofmeyr

https://doi.org/10.1002/14651858.CD006067

Differences between protocol and review

The background of the protocol has been updated and the methods have been updated to incorporate the current standard methods for Cochrane Pregnancy and Childbirth. We have included the use of GRADE to assess the quality of the body of evidence and included 'Summary of findings' tables (summary of findings Table for the main comparison; summary of findings Table 2).

New co‐authors have joined the review team for this update and Justus Hofmeyr has taken over the role of contact person and guarantor for the review.

Methods/types of interventions ‐ we have edited 'inflatable girdle' to 'inflatable belt' to make it clearer for the reader.

Keywords

MeSH

PICO

Population
Intervention
Comparison
Outcome

El uso y la enseñanza del modelo PICO están muy extendidos en el ámbito de la atención sanitaria basada en la evidencia para formular preguntas y estrategias de búsqueda y para caracterizar estudios o metanálisis clínicos. PICO son las siglas en inglés de cuatro posibles componentes de una pregunta de investigación: paciente, población o problema; intervención; comparación; desenlace (outcome).

Para saber más sobre el uso del modelo PICO, puede consultar el Manual Cochrane.

Study flow diagram
Figuras y tablas -
Figure 1

Study flow diagram

Risk of bias summary: review authors' judgements about each risk of bias item for each included study
Figuras y tablas -
Figure 2

Risk of bias summary: review authors' judgements about each risk of bias 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
Figuras y tablas -
Figure 3

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

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 1 No spontaneous vaginal birth within a specified time, as defined by the trial authors.
Figuras y tablas -
Analysis 1.1

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 1 No spontaneous vaginal birth within a specified time, as defined by the trial authors.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 2 Instrumental birth.
Figuras y tablas -
Analysis 1.2

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 2 Instrumental birth.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 3 Caesarean section.
Figuras y tablas -
Analysis 1.3

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 3 Caesarean section.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 4 Operative birth ‐ instrumental or caesarean.
Figuras y tablas -
Analysis 1.4

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 4 Operative birth ‐ instrumental or caesarean.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 5 Low arterial cord pH.
Figuras y tablas -
Analysis 1.5

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 5 Low arterial cord pH.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 6 Apgar score less than 7 at 5 minutes.
Figuras y tablas -
Analysis 1.6

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 6 Apgar score less than 7 at 5 minutes.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 7 Duration of active second stage.
Figuras y tablas -
Analysis 1.7

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 7 Duration of active second stage.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 8 Episiotomy.
Figuras y tablas -
Analysis 1.8

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 8 Episiotomy.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 9 Soft tissue damage ‐ perineal.
Figuras y tablas -
Analysis 1.9

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 9 Soft tissue damage ‐ perineal.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 10 Soft tissue damage ‐ vaginal laceration.
Figuras y tablas -
Analysis 1.10

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 10 Soft tissue damage ‐ vaginal laceration.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 11 Soft tissue damage ‐ cervical.
Figuras y tablas -
Analysis 1.11

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 11 Soft tissue damage ‐ cervical.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 12 Postpartum haemorrhage.
Figuras y tablas -
Analysis 1.12

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 12 Postpartum haemorrhage.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 13 Pain after enrolment as defined by trial authors.
Figuras y tablas -
Analysis 1.13

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 13 Pain after enrolment as defined by trial authors.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 14 Neonatal trauma ‐ fractures.
Figuras y tablas -
Analysis 1.14

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 14 Neonatal trauma ‐ fractures.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 15 Neonatal trauma ‐ haematoma.
Figuras y tablas -
Analysis 1.15

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 15 Neonatal trauma ‐ haematoma.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 16 Admission to neonatal intensive care unit.
Figuras y tablas -
Analysis 1.16

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 16 Admission to neonatal intensive care unit.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 17 Neonatal death.
Figuras y tablas -
Analysis 1.17

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 17 Neonatal death.

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 18 Sensitivity analysis: low arterial cord pH.
Figuras y tablas -
Analysis 1.18

Comparison 1 Manual fundal pressure versus no fundal pressure, Outcome 18 Sensitivity analysis: low arterial cord pH.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 1 Instrumental birth.
Figuras y tablas -
Analysis 2.1

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 1 Instrumental birth.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 2 Caesarean section.
Figuras y tablas -
Analysis 2.2

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 2 Caesarean section.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 3 Operative birth ‐ instrumental or caesarean section.
Figuras y tablas -
Analysis 2.3

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 3 Operative birth ‐ instrumental or caesarean section.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 4 Low arterial cord pH.
Figuras y tablas -
Analysis 2.4

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 4 Low arterial cord pH.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 5 Apgar score less than 7 after 5 minutes.
Figuras y tablas -
Analysis 2.5

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 5 Apgar score less than 7 after 5 minutes.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 6 Duration of second stage.
Figuras y tablas -
Analysis 2.6

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 6 Duration of second stage.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 7 Episiotomy.
Figuras y tablas -
Analysis 2.7

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 7 Episiotomy.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 8 Soft tissue damage ‐ perineal.
Figuras y tablas -
Analysis 2.8

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 8 Soft tissue damage ‐ perineal.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 9 Soft tissue damage ‐ vaginal.
Figuras y tablas -
Analysis 2.9

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 9 Soft tissue damage ‐ vaginal.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 10 Soft tissue damage ‐ anal sphincter.
Figuras y tablas -
Analysis 2.10

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 10 Soft tissue damage ‐ anal sphincter.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 11 Soft tissue damage ‐ cervical/uterine.
Figuras y tablas -
Analysis 2.11

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 11 Soft tissue damage ‐ cervical/uterine.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 12 Postpartum haemorrhage.
Figuras y tablas -
Analysis 2.12

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 12 Postpartum haemorrhage.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 13 Neonatal trauma ‐ haematoma.
Figuras y tablas -
Analysis 2.13

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 13 Neonatal trauma ‐ haematoma.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 14 Admission to neonatal intensive care unit.
Figuras y tablas -
Analysis 2.14

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 14 Admission to neonatal intensive care unit.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 15 Sensitivity analysis: instrumental birth.
Figuras y tablas -
Analysis 2.15

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 15 Sensitivity analysis: instrumental birth.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 16 Sensitivity analysis: caesarean section.
Figuras y tablas -
Analysis 2.16

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 16 Sensitivity analysis: caesarean section.

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 17 Sensitivity analysis: operative delivery ‐ instrumental or caesarean section.
Figuras y tablas -
Analysis 2.17

Comparison 2 Fundal pressure by inflatable belt versus no fundal pressure, Outcome 17 Sensitivity analysis: operative delivery ‐ instrumental or caesarean section.

Summary of findings for the main comparison. Manual fundal pressure compared to no fundal pressure for the second stage of labour

Manual fundal pressure compared to no fundal pressure for the second stage of labour

Patient or population: women with singleton pregnancy in vertex position in second stage of labour
Setting: Iran, India, South Africa and Turkey
Intervention: manual fundal pressure
Comparison: no fundal pressure

Outcomes

Anticipated absolute effects* (95% CI)

Relative effect
(95% CI)

№ of participants
(studies)

Quality of the evidence
(GRADE)

Comments

Risk with no fundal pressure

Risk with manual fundal pressure

No spontaneous vaginal birth within a specified time, as defined by the trial authors

Study population

RR 0.96
(0.71 to 1.28)

120
(1 RCT)

⊕⊝⊝⊝
Very low1,2

Reported as "Time from bearing down to birth of head =/>30 min or operative delivery". Data may contain instrumental births and should be interpreted with due caution

613 per 1000

588 per 1000
(435 to 785)

Operative birth ‐ Instrumental or caesarean birth

Study population

Average RR 0.66 (0.12 to 3.55)

317

(2 RCTs)

⊕⊝⊝⊝
Very low2,3,4

61 per 1000

33 per 1000

(12 to 92)

Low arterial cord pH

Study population

RR 1.07
(0.72 to 1.58)

297
(2 RCTs)

⊕⊝⊝⊝
Very low1,5

172 per 1000

184 per 1000
(124 to 272)

APGAR score less than 7 at 5 minutes

Study population

Average RR 4.48
(0.28 to 71.45)

2759
(4 RCTs)

⊕⊝⊝⊝
Very low6,7,8

5 per 1000

23 per 1000
(1 to 375)

Duration of active second stage

No absolute effects

Mean duration of labour 16.6 minutes

No absolute effects

Mean duration of labour 17.4 minutes

The mean duration of second stage was 0.8 minutes shorter in the fundal pressure group (3.66 minutes shorter to 2.06 minutes longer)

194
(1 RCT)

⊕⊝⊝⊝
Very low1,2

Severe maternal morbidity or death

Study population

(0 study)

No trial reported this outcome

See comment

See comment

Neonatal death

Study population

2445
(2 RCTs)

⊕⊝⊝⊝
Very low9,10

Zero neonatal deaths reported in both trials

See comment

See comment

*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; RR: Risk ratio

GRADE Working Group grades of evidence
High quality: we are very confident that the true effect lies close to that of the estimate of the effect
Moderate quality: 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 quality: our confidence in the effect estimate is limited: The true effect may be substantially different from the estimate of the effect
Very low‐quality: we have very little confidence in the effect estimate: The true effect is likely to be substantially different from the estimate of effect

1 Wide confidence interval crossing the line of no effect, few events and small sample size (‐2).
2 One study with design limitations (‐1).
3 Studies show inconsistent effects suggesting the two trials may not have measured the same outcome. Therefore not pooled (‐2).
4 Very small number of events and sample size (‐2).
5 One study with serious design limitations. Large loss to follow‐up for this outcome (‐2).
6 Two studies contributing data had design limitations, with more than 40% of weight from a study with serious design limitations (‐2).
7 One study contributing data compared Gentle Assisted Pushing, the other compared manual fundal pressure (‐1).
8 Wide confidence interval crossing line of no effect (‐1).
9 One study with serious design limitations. (‐2).
10 No events and sample size below 3000 (‐2).

Figuras y tablas -
Summary of findings for the main comparison. Manual fundal pressure compared to no fundal pressure for the second stage of labour
Summary of findings 2. Fundal pressure by inflatable belt compared to no fundal pressure for second stage of labour

Fundal pressure by inflatable belt compared to no fundal pressure for second stage of labour

Patient or population: women with singleton pregnancy in vertex position in second stage of labour
Setting: Italy, South Korea and UK
Intervention: fundal pressure by inflatable belt
Comparison: no fundal pressure

Outcomes

Anticipated absolute effects* (95% CI)

Relative effect
(95% CI)

№ of participants
(studies)

Quality of the evidence
(GRADE)

Comments

Risk with no fundal pressure

Risk with fundal pressure by inflatable belt

No spontaneous vaginal birth within a specified time

Study population

(0 study)

No trial reported this outcome

See comment

See comment

Operative birth ‐ instrumental or caesarean section

Study population

Average RR 0.62
(0.38 to 1.01)

891
(4 RCTs)

⊕⊝⊝⊝
Very low1,2,3

516 per 1000

320 per 1000
(196 to 521)

Low arterial cord pH

Study population

RR 0.47
(0.09 to 2.55)

461
(1 RCT)

⊕⊕⊝⊝
Low4

18 per 1000

8 per 1000
(2 to 46)

Apgar score less than 7 after 5 minutes

Study population

RR 4.62
(0.22 to 95.68)

500
(1 RCT)

⊕⊝⊝⊝
Very low4,5

0 per 1000

0 per 1000
(0 to 0)

Duration of second stage (minutes)

No absolute effects

No absolute effects

The average mean duration of second stage was 50.8 minutes shorter in the inflatable belt group (94.85 minutes shorter to 6.74 minutes shorter)

253

(2 RCTs)

⊕⊝⊝⊝
Very low4,6,7

Acanfora 2013: mean duration of second stage was 73.47 minutes shorter for women in the inflatable belt group (86.40 minutes shorter to 60.54 minutes shorter)

Kim 2013: mean duration of second stage was 28.51 minutes shorter for women in the inflatable belt group (38.50 minutes shorter to 18.52 minutes shorter)

Severe maternal morbidity and death

Study population

(0 study)

No trial reported these outcomes

See comment

See comment

Neonatal death

Study population

(0 study)

No trial reported this outcome

See comment

See comment

*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; RR: Risk ratio

GRADE Working Group grades of evidence
High quality: We are very confident that the true effect lies close to that of the estimate of the effect
Moderate quality: 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 quality: Our confidence in the effect estimate is limited: The true effect may be substantially different from the estimate of the effect
Very low quality: We have very little confidence in the effect estimate: The true effect is likely to be substantially different from the estimate of effect

1 Most studies contributing data had design limitations (‐1).
2 Statistical heterogeneity (I2 > 60%). Direction of effect consistent but size of effect variable (‐1).
3 Wide confidence interval crossing the line of no effect and estimate based on small sample size (‐2).
4 Wide confidence interval crossing the line of no effect, few events and small sample size (‐2).
5 One study with design limitations (‐1).
6 Most studies contributing data had design limitations, with more than 40% of weight from a study with substantial design limitations (‐2).
7 Direction of effect consistent but considerable differences in size of effect (‐2).

Figuras y tablas -
Summary of findings 2. Fundal pressure by inflatable belt compared to no fundal pressure for second stage of labour
Comparison 1. Manual fundal pressure versus no fundal pressure

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 No spontaneous vaginal birth within a specified time, as defined by the trial authors Show forest plot

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

0.96 [0.71, 1.28]

2 Instrumental birth Show forest plot

1

197

Risk Ratio (M‐H, Fixed, 95% CI)

3.28 [0.14, 79.65]

3 Caesarean section Show forest plot

1

197

Risk Ratio (M‐H, Fixed, 95% CI)

1.10 [0.07, 17.27]

4 Operative birth ‐ instrumental or caesarean Show forest plot

2

317

Risk Ratio (M‐H, Random, 95% CI)

0.66 [0.12, 3.55]

5 Low arterial cord pH Show forest plot

2

297

Risk Ratio (M‐H, Fixed, 95% CI)

1.07 [0.72, 1.58]

6 Apgar score less than 7 at 5 minutes Show forest plot

4

2759

Risk Ratio (M‐H, Random, 95% CI)

4.48 [0.28, 71.45]

7 Duration of active second stage Show forest plot

1

194

Mean Difference (IV, Fixed, 95% CI)

‐0.80 [‐3.66, 2.06]

8 Episiotomy Show forest plot

2

317

Risk Ratio (M‐H, Fixed, 95% CI)

1.18 [0.92, 1.50]

9 Soft tissue damage ‐ perineal Show forest plot

1

209

Risk Ratio (M‐H, Fixed, 95% CI)

6.42 [0.79, 52.37]

10 Soft tissue damage ‐ vaginal laceration Show forest plot

1

295

Risk Ratio (M‐H, Fixed, 95% CI)

1.24 [0.75, 2.03]

11 Soft tissue damage ‐ cervical Show forest plot

1

295

Risk Ratio (M‐H, Fixed, 95% CI)

4.90 [1.09, 21.98]

12 Postpartum haemorrhage Show forest plot

1

120

Risk Ratio (M‐H, Fixed, 95% CI)

1.87 [0.58, 6.06]

13 Pain after enrolment as defined by trial authors Show forest plot

1

209

Risk Ratio (M‐H, Fixed, 95% CI)

4.54 [2.21, 9.34]

14 Neonatal trauma ‐ fractures Show forest plot

1

209

Risk Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

15 Neonatal trauma ‐ haematoma Show forest plot

1

209

Risk Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

16 Admission to neonatal intensive care unit Show forest plot

1

295

Risk Ratio (M‐H, Fixed, 95% CI)

1.63 [0.40, 6.71]

17 Neonatal death Show forest plot

2

2445

Risk Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

18 Sensitivity analysis: low arterial cord pH Show forest plot

1

118

Risk Ratio (M‐H, Fixed, 95% CI)

1.07 [0.72, 1.58]

Figuras y tablas -
Comparison 1. Manual fundal pressure versus no fundal pressure
Comparison 2. Fundal pressure by inflatable belt versus no fundal pressure

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Instrumental birth Show forest plot

4

891

Risk Ratio (M‐H, Random, 95% CI)

0.73 [0.52, 1.02]

2 Caesarean section Show forest plot

4

891

Risk Ratio (M‐H, Random, 95% CI)

0.56 [0.14, 2.26]

3 Operative birth ‐ instrumental or caesarean section Show forest plot

4

891

Risk Ratio (M‐H, Random, 95% CI)

0.62 [0.38, 1.01]

4 Low arterial cord pH Show forest plot

1

461

Risk Ratio (M‐H, Fixed, 95% CI)

0.47 [0.09, 2.55]

5 Apgar score less than 7 after 5 minutes Show forest plot

1

500

Risk Ratio (M‐H, Fixed, 95% CI)

4.62 [0.22, 95.68]

6 Duration of second stage Show forest plot

2

253

Mean Difference (IV, Random, 95% CI)

‐50.80 [‐94.85, ‐6.74]

7 Episiotomy Show forest plot

3

811

Risk Ratio (M‐H, Random, 95% CI)

0.98 [0.86, 1.12]

8 Soft tissue damage ‐ perineal Show forest plot

4

897

Risk Ratio (M‐H, Random, 95% CI)

0.53 [0.20, 1.38]

9 Soft tissue damage ‐ vaginal Show forest plot

1

123

Risk Ratio (M‐H, Fixed, 95% CI)

0.74 [0.27, 2.00]

10 Soft tissue damage ‐ anal sphincter Show forest plot

1

500

Risk Ratio (M‐H, Fixed, 95% CI)

15.69 [2.10, 117.02]

11 Soft tissue damage ‐ cervical/uterine Show forest plot

2

203

Risk Ratio (M‐H, Fixed, 95% CI)

0.42 [0.06, 2.82]

12 Postpartum haemorrhage Show forest plot

1

500

Risk Ratio (M‐H, Fixed, 95% CI)

0.35 [0.09, 1.29]

13 Neonatal trauma ‐ haematoma Show forest plot

1

123

Risk Ratio (M‐H, Fixed, 95% CI)

0.33 [0.01, 7.90]

14 Admission to neonatal intensive care unit Show forest plot

4

891

Risk Ratio (M‐H, Random, 95% CI)

0.64 [0.19, 2.14]

15 Sensitivity analysis: instrumental birth Show forest plot

3

811

Risk Ratio (M‐H, Random, 95% CI)

0.81 [0.63, 1.04]

16 Sensitivity analysis: caesarean section Show forest plot

3

811

Risk Ratio (M‐H, Random, 95% CI)

0.80 [0.20, 3.19]

17 Sensitivity analysis: operative delivery ‐ instrumental or caesarean section Show forest plot

3

811

Risk Ratio (M‐H, Random, 95% CI)

0.77 [0.52, 1.13]

Figuras y tablas -
Comparison 2. Fundal pressure by inflatable belt versus no fundal pressure