Comparison of Efficacy of Prophylactic Endoscopic Therapies for Postpolypectomy Bleeding in the Colorectum: A Systematic Review and Network Meta-Analysis
Abstract
OBJECTIVES: Although various endoscopic therapies have been suggested for preventing bleeding after colorectal polypectomy, the optimal therapy has yet to be fully clarified. We assessed the comparative efficacy of prophylactic therapies for postpolypectomy bleeding through a network meta-analysis combining direct and indirect comparisons.
METHODS: We searched for all relevant randomized controlled trials published up until January 2016 examining the effects of prophylactic therapy for bleeding after colorectal polypectomy. The types of prophylactic therapy were classified as mechanical therapy, epinephrine-saline injection therapy, coagulation therapy, combined therapy, or no prophylactic therapy. Combined therapy was defined as a combination of two or more types of therapy including mechanical therapy, epinephrine-saline injection therapy, and coagulation therapy. We performed a Bayesian network meta-analysis for all prophylactic therapies.
RESULTS: Fifteen studies with 3,462 patients were included in the meta-analysis. Compared with no prophylactic therapy, both epinephrine-saline injection and mechanical therapy showed superiority for preventing early postpolypectomy bleeding with a moderate quality of evidence (injection therapy, risk ratio (RR; 95% credible interval (CrI))=0.32 (0.11-0.67); mechanical therapy, RR (95% CrI)=0.13 (0.03-0.37)). Combined therapy did not show a statistically significant difference for decreasing the risk of early bleeding compared with…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 3,462 participants or records.
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