Evidence map›Paper›PMID 18577254›Full record

SynthesisJournal of experimental & clinical cancer research : CR2008

Parenteral anticoagulation may prolong the survival of patients with limited small cell lung cancer: a Cochrane systematic review.

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

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Journal of experimental & clinical cancer research : CR, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
3.4field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Venous thromboembolic disease.Journal of the National Comprehensive Cancer Network : JNCCN · 2011
    Guideline
  3. Pooled it
  4. Trial
  5. Frontiers in oncology · 2020
    Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Interaction between circulating cancer cells and platelets: clinical implication.Chinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2015
    Review
  13. Article
  14. Article
  15. Review
  16. The effect of LMWH (Nadroparin) on tumor progression.Pathology oncology research : POR · 2009
    Article
  17. Cancer, clots and consensus: new understanding of an old problem.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2009
    Review
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 3 countries.

Elie A AklDepartment of Medicine, State University of New York at Buffalo, NY, USA. elieakl@buffalo.edu
Frederiek F van Doormaal
Maddalena Barba
Ganesh Kamath
Seo Young Kim
Saskia Kuipers
Saskia Middeldorp
Victor Yosuico
Heather O Dickinson
Holger J Schünemann
University at Buffalo, State University of New York · USLeiden University Medical Center · NLAcademic Medical Center · NLUniversity of Newcastle Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo determine the efficacy and safety of heparin (unfractionated heparin (UFH) or low-molecular-weight-heparin (LMWH)) and fondaparinux in improving the survival of patients with cancer.

methodsWe conducted in January 2007 a comprehensive search for relevant randomized clinical trials (RCTs). We used a standardized form to extract in duplicate data on methodological quality, participants, interventions and outcomes of interest including all cause mortality, thromboembolic events, and bleeding events. We assessed the methodological quality for each outcome by grading the quality of evidence using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology

resultsOf 3986 identified citations, we included 5 RCTs, none of which evaluated fondaparinux. The quality of evidence was moderate for survival, low for major and minor bleeding, and very low for DVT. Heparin therapy was associated with a statistically and clinically significant survival benefit (hazard ratio (HR) = 0.77; 95%CI = 0.65-0.91). In subgroup analyses, patients with limited small cell lung cancer experienced a clear survival benefit (HR = 0.56; 95%CI = 0.38-0.83). The survival benefit was not statistically significant for either patients with extensive small cell lung cancer (HR = 0.80; 95%CI = 0.60-1.06) or patients with advanced cancer (HR = 0.84; 95%CI = 0.68-1.03). The increased risk of bleeding with heparin was not statistically significant (relative risk (RR) = 1.78; 95%CI = 0.73-4.38).

conclusionThis review suggests a survival benefit of heparin in cancer patients in general, and in patients with limited small cell lung cancer in particular.

Indexed as

AnticoagulantsCarcinoma, Small CellFondaparinuxHeparin, Low-Molecular-WeightHumansLung NeoplasmsPolysaccharidesSurvival AnalysisTreatment OutcomeAnticoagulantsFondaparinuxHeparin, Low-Molecular-WeightPolysaccharides

Identifiers

PMID18577254
PMCPMC2438335
OpenAlexW2014643729

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.