Scolaris Content Display Scolaris Content Display

Cochrane Database of Systematic Reviews

Parenteral anticoagulation in ambulatory patients with cancer

Esta versión no es la más reciente

Información

DOI:
https://doi.org/10.1002/14651858.CD006652.pub4Copiar DOI
Base de datos:
  1. Cochrane Database of Systematic Reviews
Versión publicada:
  1. 10 diciembre 2014see what's new
Tipo:
  1. Intervention
Etapa:
  1. Review
Grupo Editorial Cochrane:
  1. Grupo Cochrane de Cáncer ginecológico, neurooncología y otros cánceres

Copyright:
  1. Copyright © 2015 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

Cifras del artículo

Altmetric:

Citado por:

Citado 0 veces por enlace Crossref Cited-by

Contraer

Autores

  • Elie A Akl

    Correspondencia a: Department of Internal Medicine, American University of Beirut, Beirut, Lebanon

    [email protected]

  • Lara A Kahale

    Faculty of Medicine, American University of Beirut, Beirut, Lebanon

  • Rami A Ballout

    Faculty of Medicine, American University of Beirut, Beirut, Lebanon

  • Maddalena Barba

    Division of Medical Oncology B ‐ Scientific Direction, Regina Elena National Cancer Institute, Rome, Italy

  • Victor E D Yosuico

    Buffalo Medical Group, Buffalo, USA

  • Frederiek F van Doormaal

    Department of Vascular Medicine, Academic Medical Center, Amsterdam, Netherlands

  • Saskia Middeldorp

    Department of Vascular Medicine, Academic Medical Center, Amsterdam, Netherlands

  • Andrew Bryant

    Institute of Health & Society, Newcastle University, Newcastle upon Tyne, UK

  • Holger Schünemann

    Departments of Clinical Epidemiology and Biostatistics and of Medicine, McMaster University, Hamilton, Canada

Contributions of authors

EAA: protocol development, searching for trials, screening, data extraction, data analysis, manuscript drafting, review co‐ordination. LK: searching for trials, screening, full text retrieval, data extraction, data analysis, manuscript drafting. RM: data extraction. MB: screening. VY: full text retrieval, data extraction. FFvD: data extraction, data analysis. SK: data extraction, data analysis. SM: data extraction, data analysis. HOD: statistical analysis, methodological advice, data extraction, manuscript drafting. AB: statistical analysis. HJS: protocol development, searching for trials, data analysis, methodological expertise.

Sources of support

Internal sources

  • No sources of support supplied

External sources

  • Research Grants, Other.

    H Schünemann: no personal payments from for‐profit sponsors. Research grants and honoraria were received into research accounts or received by a research group that he belongs to from AstraZeneca, Amgen, Chiesi Foundation, Lily, Pfizer, Roche and UnitedBioSource for development or consulting regarding quality of life instruments for chronic respiratory diseases and as lecture fees related to the methodology of evidence‐based practice guideline development and research methodology. Institutions or organizations that he is affiliated with likely receive funding from for‐profit sponsors that are supporting infrastructure and research that may serve his work.

  • National Institute for Health Research Cochrane Review Incentive Scheme 2013Updating systematic reviews on anticoagulation in patients with cancer, UK.

Declarations of interest

HJS: no personal payments from for‐profit sponsors related to the subject matter in the past three years. EAA is an executive committee member of the ACCP Antithrombotic Therapy Guidelines.All other co‐authors declare no conflicts of interests.

Acknowledgements

We thank Ms. Ann Grifasi for her administrative support. We thank Dr. Loprinzi and Dr. Paul Novotny of the Mayo Clinic for supplying additional data relating to the study Sideras 2006. We also thank Dr. Lebeau, Dr. Altinbas and Dr. Pelzer for supplying additional data. We thank Sameer K Gunukula, Saskia Kuipers and Heather Dickinson for their contributions to previous versions of this manuscript.

The National Institute for Health Research (NIHR) is the largest single funder of the Cochrane Gynaecological Cancer Group.

The views and opinions expressed therein are those of the authors and do not necessarily reflect those of the NIHR, NHS or the Department of Health

Version history

Published

Title

Stage

Authors

Version

2017 Sep 11

Parenteral anticoagulation in ambulatory patients with cancer

Review

Elie A Akl, Lara A Kahale, Maram B Hakoum, Charbel F Matar, Francesca Sperati, Maddalena Barba, Victor ED Yosuico, Irene Terrenato, Anneliese Synnot, Holger Schünemann

https://doi.org/10.1002/14651858.CD006652.pub5

2014 Dec 10

Parenteral anticoagulation in ambulatory patients with cancer

Review

Elie A Akl, Lara A Kahale, Rami A Ballout, Maddalena Barba, Victor E D Yosuico, Frederiek F van Doormaal, Saskia Middeldorp, Andrew Bryant, Holger Schünemann

https://doi.org/10.1002/14651858.CD006652.pub4

2011 Apr 13

Parenteral anticoagulation in patients with cancer who have no therapeutic or prophylactic indication for anticoagulation

Review

Elie A Akl, Sameer Gunukula, Maddalena Barba, Victor E D Yosuico, Frederiek F van Doormaal, Saskia Kuipers, Saskia Middeldorp, Heather O Dickinson, Andrew Bryant, Holger Schünemann

https://doi.org/10.1002/14651858.CD006652.pub3

2011 Jan 19

Parenteral anticoagulation in patients with cancer who have no therapeutic or prophylactic indication for anticoagulation

Review

Elie A Akl, Sameer Gunukula, Maddalena Barba, Victor E D Yosuico, Frederiek F van Doormaal, Saskia Kuipers, Saskia Middeldorp, Heather O Dickinson, Andrew Bryant, Holger Schünemann

https://doi.org/10.1002/14651858.CD006652.pub2

2007 Jul 18

Parenteral anticoagulation for prolonging survival in patients with cancer who have no other indication for anticoagulation

Review

Elie A Akl, Frederiek F van Doormaal, Maddalena Barba, Ganesh Kamath, Seo Young Kim, Saskia Kuipers, Saskia Middeldorp, Victor E D Yosuico, Heather O Dickinson, Holger Schünemann

https://doi.org/10.1002/14651858.CD006652

Differences between protocol and review

None.

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 ‐ mortality at 12 months: review authors' judgements about each methodological quality item for each included study that evaluated mortality at 12 months
Figuras y tablas -
Figure 2

'Risk of bias' summary ‐ mortality at 12 months: review authors' judgements about each methodological quality item for each included study that evaluated mortality at 12 months

Funnel plot of comparison: 1 Heparin versus placebo, outcome: 1.1 Mortality at 12 months.
Figuras y tablas -
Figure 3

Funnel plot of comparison: 1 Heparin versus placebo, outcome: 1.1 Mortality at 12 months.

'Risk of bias' summary ‐ venous thromboembolism: review authors' judgements about each methodological quality item for each included study that evaluated venous thromboembolism
Figuras y tablas -
Figure 4

'Risk of bias' summary ‐ venous thromboembolism: review authors' judgements about each methodological quality item for each included study that evaluated venous thromboembolism

'Risk of bias' summary ‐ major bleeding: review authors' judgements about each methodological quality item for each included study that evaluated major bleeding
Figuras y tablas -
Figure 5

'Risk of bias' summary ‐ major bleeding: review authors' judgements about each methodological quality item for each included study that evaluated major bleeding

'Risk of bias' summary ‐ minor bleeding: review authors' judgements about each methodological quality item for each included study that evaluated minor bleeding
Figuras y tablas -
Figure 6

'Risk of bias' summary ‐ minor bleeding: review authors' judgements about each methodological quality item for each included study that evaluated minor bleeding

Comparison 1 Heparin versus placebo, Outcome 1 Mortality at 12 months.
Figuras y tablas -
Analysis 1.1

Comparison 1 Heparin versus placebo, Outcome 1 Mortality at 12 months.

Comparison 1 Heparin versus placebo, Outcome 2 Mortality at 24 months.
Figuras y tablas -
Analysis 1.2

Comparison 1 Heparin versus placebo, Outcome 2 Mortality at 24 months.

Comparison 1 Heparin versus placebo, Outcome 3 Mortality over duration of study.
Figuras y tablas -
Analysis 1.3

Comparison 1 Heparin versus placebo, Outcome 3 Mortality over duration of study.

Comparison 1 Heparin versus placebo, Outcome 4 Symptomatic VTE.
Figuras y tablas -
Analysis 1.4

Comparison 1 Heparin versus placebo, Outcome 4 Symptomatic VTE.

Comparison 1 Heparin versus placebo, Outcome 5 Symptomatic DVT.
Figuras y tablas -
Analysis 1.5

Comparison 1 Heparin versus placebo, Outcome 5 Symptomatic DVT.

Comparison 1 Heparin versus placebo, Outcome 6 Symptomatic PE.
Figuras y tablas -
Analysis 1.6

Comparison 1 Heparin versus placebo, Outcome 6 Symptomatic PE.

Comparison 1 Heparin versus placebo, Outcome 7 Major bleeding.
Figuras y tablas -
Analysis 1.7

Comparison 1 Heparin versus placebo, Outcome 7 Major bleeding.

Comparison 1 Heparin versus placebo, Outcome 8 Minor bleeding.
Figuras y tablas -
Analysis 1.8

Comparison 1 Heparin versus placebo, Outcome 8 Minor bleeding.

Comparison 1 Heparin versus placebo, Outcome 9 Thrombocytopenia.
Figuras y tablas -
Analysis 1.9

Comparison 1 Heparin versus placebo, Outcome 9 Thrombocytopenia.

Summary of findings for the main comparison. Heparin compared to placebo for ambulatory patients with cancer who have no therapeutic or prophylactic indication for anticoagulation

Heparin compared to placebo for ambulatory patients with cancer who have no therapeutic or prophylactic indication for anticoagulation

Patient or population: Ambulatory patients with cancer who have no therapeutic or prophylactic indication for anticoagulation
Settings: Outpatient
Intervention: heparin
Comparison: placebo

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

No of participants
(studies)

Quality of the evidence
(GRADE)

Comments

Assumed risk

Corresponding risk

Placebo

Heparin

Mortality at 12 months

Study population

RR 0.97
(0.92 to 1.01)

7013
(13 RCTs)

⊕⊕⊕⊝
MODERATE 1

Moderate‐quality evidence owing to imprecision. A survival analysis based on data from 11 studies found a hazard ratio of 0.84 (95% CI 0.74 to 0.96); however heterogeneity in that analysis was relatively high (I2 = 58%) and subgroup analyses did not conclusively identify any subgroup effect

472 per 1000

458 per 1000
(434 to 477)

Symptomatic VTE

Study population

RR 0.56
(0.42 to 0.74)

6809
(13 RCTs)

⊕⊕⊕⊕
HIGH

The data are combined for pulmonary embolism and symptomatic deep venous thrombosis

55 per 1000

31 per 1000
(23 to 41)

Major bleeding

Study population

RR 1.14
(0.7 to 1.85)

7363
(15 RCTs)

⊕⊕⊕⊝
MODERATE 2

Moderate‐quality evidence owing to imprecision

19 per 1000

21 per 1000
(13 to 35)

Minor bleeding

Study population

RR 1.32
(1.02 to 1.71)

6884
(13 RCTs)

⊕⊕⊕⊝
MODERATE 3

Moderate‐quality evidence owing to imprecision

30 per 1000

40 per 1000
(31 to 51)

*The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The corresponding risk (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; RCT: randomized controlled trial; RR: risk ratio; VTE: venous thromboembolism

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect.
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very low quality: We are very uncertain about the estimate.

1Confidence interval includes values suggesting clinically significant benefit and values suggesting no effect.

2Confidence interval includes values suggesting clinically significant benefit and values suggesting harm.

3Confidence interval includes values suggesting clinically significant harm and values suggesting no effect.

Figuras y tablas -
Summary of findings for the main comparison. Heparin compared to placebo for ambulatory patients with cancer who have no therapeutic or prophylactic indication for anticoagulation
Table 1. Glossary

Term

Definition

Adjuvant therapy

Assisting in the amelioration or cure of disease

Anticoagulation

The process of hindering the clotting of blood especially by treatment with an anticoagulant

Antithrombotic

Used against or tending to prevent thrombosis (clotting)

Bacteremia

The presence of bacteria in the blood

Central venous line

Synthetic tube that is inserted into a central (large) vein of a patient to provide temporary intravenous access for the administration of fluid, medication or nutrients

Coagulation

Clotting

Deep vein thrombosis (DVT)

A condition marked by the formation of a thrombus within a deep vein (as of the leg or pelvis) that may be asymptomatic or be accompanied by symptoms (such as swelling and pain) and that is potentially life‐threatening if dislodgment of the thrombus results in pulmonary embolism

Fibrin

A white insoluble fibrous protein formed from fibrinogen by the action of thrombin, especially in the clotting of blood

Fondaparinux

An anticoagulant medication

Hemostatic system

The system that shortens the clotting time of blood and stops bleeding

Heparin

An enzyme occurring especially in the liver and lungs that prolongs the clotting time of blood by preventing the formation of fibrin. Two forms of heparin that are used as anticoagulant medications are: unfractionated heparin (UFH) and low molecular weight heparins (LMWH)

Impedance plethysmography

A technique that measures the change in blood volume (venous blood volume as well as the pulsation of the arteries) for a specific body segment

Kappa statistics

A measure of degree of non‐random agreement between observers and/or measurements of a specific categorical variable

Metastasis

The spread of cancer cells from the initial or primary site of disease to another part of the body

Oncogene

A gene having the potential to cause a normal cell to become cancerous

Osteoporosis

A condition that especially affects older women and is characterized by a decrease in bone mass with decreased density and enlargement of bone spaces producing porosity and brittleness

Parenteral nutrition

The practice of feeding a patient intravenously, circumventing the gut

Pulmonary embolism (PE)

Embolism of a pulmonary artery or one of its branches that is produced by foreign matter and most often a blood clot originating in a vein of the leg or pelvis and that is marked by labored breathing, chest pain, fainting, rapid heart rate, cyanosis, shock and sometimes death

Stroma

The supporting framework of an organ typically consisting of connective tissue

Thrombin

A proteolytic enzyme formed from prothrombin that facilitates the clotting of blood by catalyzing conversion of fibrinogen to fibrin

Thrombocytopenia

Persistent decrease in the number of blood platelets that is often associated with hemorrhagic conditions

Thrombosis

The formation or presence of a blood clot within a blood vessel

Vitamin K antagonists

Anticoagulant medications that are used for anticoagulation. Warfarin is a vitamin K antagonist

Warfarin

An anticoagulant medication that is a vitamin K antagonist, which is used for anticoagulation

Ximelagatran

An anticoagulant medication

Figuras y tablas -
Table 1. Glossary
Table 2. LMWH: definitions of prophylactic and therapeutic dosages

LMWH

Generic name

Prophylactic dose

Therapeutic dose

Lovenox

Enoxaparin

40 mg once daily

1 mg/kg twice daily

Fragmin

Dalteparin

2500 to 5000 units once daily

200 U/kg once daily or
100 U/kg twice daily

Innohep, Logiparin

Tinzaparin,

4500 units once daily

90 U/kg twice daily

Fraxiparine

Nadroparin

35 to 75 anti‐Xa international units/kg once daily

175 anti‐Xa int. units/kg once daily

Certoparin

Sandoparin

3000 anti‐Xa international units once daily

Figuras y tablas -
Table 2. LMWH: definitions of prophylactic and therapeutic dosages
Comparison 1. Heparin versus placebo

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Mortality at 12 months Show forest plot

13

7013

Risk Ratio (M‐H, Random, 95% CI)

0.97 [0.92, 1.01]

2 Mortality at 24 months Show forest plot

7

1621

Risk Ratio (M‐H, Random, 95% CI)

0.95 [0.90, 1.00]

3 Mortality over duration of study Show forest plot

11

5254

Hazard Ratio (Random, 95% CI)

0.84 [0.74, 0.96]

4 Symptomatic VTE Show forest plot

13

6809

Risk Ratio (M‐H, Random, 95% CI)

0.56 [0.43, 0.74]

5 Symptomatic DVT Show forest plot

9

6209

Risk Ratio (M‐H, Random, 95% CI)

0.49 [0.28, 0.86]

6 Symptomatic PE Show forest plot

9

6245

Risk Ratio (M‐H, Random, 95% CI)

0.59 [0.37, 0.96]

7 Major bleeding Show forest plot

15

7305

Risk Ratio (M‐H, Random, 95% CI)

1.13 [0.63, 2.01]

8 Minor bleeding Show forest plot

13

6884

Risk Ratio (M‐H, Random, 95% CI)

1.32 [1.02, 1.71]

9 Thrombocytopenia Show forest plot

9

4890

Risk Ratio (M‐H, Random, 95% CI)

0.54 [0.26, 1.12]

Figuras y tablas -
Comparison 1. Heparin versus placebo