Abstract
Purpose
This meta-analysis aims to investigate the role of prophylactic clipping after endoscopic colorectal polypectomy or endoscopic mucosal resection (EMR) in prevention of delayed bleeding (DB) following polypectomy.
Methods
We searched the PubMed, Embase, and Cochrane Library databases for randomized controlled trials comparing the effect of prophylactic clipping versus no clipping on DB since inception to 22nd April 2022. We then performed a meta-analysis using a random-effects model.
Results
We included 8 studies with 5648 patients and 10,436 lesions. Prophylactic clipping did not reduce the overall risk of DB compared with no clipping (1.54% vs 2.05%; Log RR, −0.29; 95% confidence interval [CI], −0.59, 0.01; P = 0.06). In subgroup analyses, clipping significantly reduced DB rate in polyps ≥ 2 cm (Log RR, −0.63; 95% CI, −1.08, −0.18; P = 0.01), in non-pedunculated polyps (Log RR, −0.63; 95% CI, −1.01, −0.24; P = 0.00), and in large (≥ 2 cm) proximal polyps (Log RR, −0.81; 95% CI, −1.56, 0.05; P = 0.04), but not in polyps < 2 cm (Log RR, 0.01; 95% CI, −.40, 0.42; P = 0.95).
Conclusion
Prophylactic clipping does not prevent post-polypectomy bleeding after all EMR and should not be performed as a routine practice. Although prophylactic clipping may reduce DB rate following resection of large proximal polyps and non-pedunculated polyps, more high-quality studies are needed to determine the effects of factors such as polyp location, polyp morphology, antithrombotic drug use and complete or partial closure on the effectiveness of prophylactic clipping.
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Zheng Yu contributed to the conception of the study; Zheng Yu and Jinpin Chen performed the search of databases; Yaojun Hu, Zheng Yu, and Jing Hu performed the literature screening and data extraction; Zheng Yu and Jinpeng Wang performed the data analyses; Zheng Yu, Peilin Li, and Quan li contributed to the manuscript and figure preparation; Eduardo Albéniz provided the data about Clip closure after resection of large colorectal lesions with substantial risk of bleeding and participated in the conception and revision of the article.
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Yu, Z., Albéniz, E., Hu, J. et al. Prevention of delayed post-polypectomy bleeding by prophylactic clipping after endoscopic colorectal polypectomy: a meta-analysis. Int J Colorectal Dis 37, 2229–2236 (2022). https://doi.org/10.1007/s00384-022-04253-0
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DOI: https://doi.org/10.1007/s00384-022-04253-0