Prophylactic Clipping After Colorectal Endoscopic Resection Prevents Bleeding of Large, Proximal Polyps:...

Area of Science:

• Gastroenterology
• Endoscopic Procedures
• Clinical Trials

Background:

• The efficacy of prophylactic clipping to prevent post-polypectomy bleeding remains uncertain.
• This study addresses the need for updated evidence on clipping's benefits.

Purpose of the Study:

• To assess the efficacy of prophylactic clipping in preventing bleeding after colorectal polypectomy.
• To analyze benefits based on polyp size and location through meta-analysis.

Main Methods:

• An updated meta-analysis of randomized controlled trials was performed.
• Searched MEDLINE/PubMed, Embase, and Scopus databases for relevant trials.
• Random-effects meta-analysis and metaregression were used to pool data and assess associations.

Main Results:

• Clipping did not significantly reduce overall post-polypectomy bleeding risk (RR, 0.69; P=.072).
• Clipping significantly reduced bleeding risk for polyps ≥20 mm (RR, 0.51; P=.020) and proximal polyps (RR, 0.53; P<.001).
• Metaregression showed prophylactic clipping reduced bleeding risk for large proximal polyps (RR, 0.37; P=.021) but not small proximal ones (RR, 0.88; P=.581).

Conclusions:

• Routine prophylactic clipping does not lower overall post-polypectomy bleeding risk.
• Clipping is beneficial for preventing bleeding after removal of large (≥20 mm) proximal colorectal lesions.