Evidence map›Paper›PMID 31294373›Full record

ArticleJournal of the Canadian Association of Gastroenterology2019

Routine Prophylactic Endoscopic Clipping Is Not Efficacious in the Prevention of Delayed Post-Polypectomy Bleeding: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Nauzer Forbes, Levi Frehlich, Matthew T James, Robert J Hilsden, Gilaad G Kaplan, Todd A Wilson, Diane L Lorenzetti, David J Tate, Michael J Bourke, Steven J Heitman

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Journal of the Canadian Association of Gastroenterology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04559880 (Tranexamic Acid to Prevent Bleeding After Endoscopic Resection of Large Colorectal Polyps), which is not on this map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 9% 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.

NCT04559880 phase4completednot on this mapstarted 2020, after this paper: background citation

Tranexamic Acid to Prevent Bleeding After Endoscopic Resection of Large Colorectal Polyps: A Pilot Project

TypeinterventionalSponsorLawrence Charles HookeyRan2020 to 2023Enrolled25ConditionsPolyp, ColorectalArmsTranexamic Acid Injection [Cyklokapron]
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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  7. [Risk factors for delayed bleeding after intestinal polypectomy in children].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2024
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  9. Review
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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 2 institutions in 2 countries.

Nauzer ForbesDepartment of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Levi FrehlichDepartment of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Matthew T JamesDepartment of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Robert J HilsdenDepartment of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Gilaad G KaplanDepartment of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Todd A WilsonDepartment of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Diane L LorenzettiDepartment of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
David J TateDepartment of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia.
Michael J BourkeDepartment of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia.
Steven J HeitmanDepartment of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
University of Calgary · CAThe University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsColorectal cancer (CRC) can be prevented through colonoscopic polypectomy, but this exposes patients to risks, including delayed post-polypectomy bleeding (DPPB). Endoscopists increasingly use clips prophylactically with the aim of preventing DPPB. However, clips are costly, and data to support their efficacy in this context are inconsistent. We performed a systematic review and meta-analysis of randomized controlled trials to assess the efficacy of prophylactic clipping for preventing DPPB.

methodsWe searched electronic databases and other relevant sources for randomized controlled trials assessing the efficacy of prophylactic clipping versus no clipping for the prevention of DPPB. Pooled relative risks were determined using a fixed-effects model. Subgroup analyses were also performed.

resultsA total of 2305 citations were initially screened. Seven randomized controlled trials satisfied all criteria for inclusion. The quality of included studies was generally low to moderate. A total of 2851 patients underwent 5405 polypectomies. Delayed post-polypectomy bleeding occurred at an overall pooled rate of 2.5%. No overall benefit of clipping for preventing DPPB was observed, with a pooled relative risk of 0.86 (95% confidence interval [CI], 0.55 to 1.36). No significant patient or polyp factors predicting DPPB were found through subgroup analyses. No publication bias was identified.

conclusionsRandomized trials to date do not demonstrate a protective effect of prophylactic clipping for the prevention of DPPB, and therefore, the practice of routine prophylactic clipping appears unjustified. Additional high quality randomized trials are required to identify higher-risk groups that may benefit from prophylactic clipping.

Indexed as

ColonoscopyHemorrhagePolyps

Identifiers

PMID31294373
PMCPMC6619410
OpenAlexW2883915281

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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.