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Post-polypectomy bleeding after colonoscopy on uninterrupted aspirin/non steroideal antiflammatory drugs: Systematic
Flavia Pigò1, Helga Bertani1, Giuseppe Grande1
1Endoscopy Unit, New Civil Hospital S. Agostino Estense, Modena, Italy.
Background And Aim:
The aim of this systematic review and meta-analysis was to assess the risk of post-polypectomy bleeding (PPB) in patients that underwent colorectal polypectomy and exposed to ASA/NSAIDs.
Methods:
Relevant publications were identified in MEDLINE/EMBASE for the period 1950-2016. Studies with specified ASA/NSAIDs exposure and bleeding rate were included. Study quality was ascertained according to Newcastle-Ottawa Scale. Forest plot was based on fixed or random effect models in relation to the heterogeneity.
Results:
11 studies (4 prospective and 7 retrospective) including 9307 patients were included in the analyses. Overall, 344 patients (OR 1.8; 95% CI 1.2-2.7; p-value 0.001, I2 52%) experienced rectal bleeding after procedure. While the rate of immediate PPB on aspirin and/or NSAIDs was not increased (OR 1.1; CI 95% 0.6-2.1; d.f.=1, p=0.64, I2 0%), the risk of delayed PPB was augmented (OR 1.7; 95% CI 1.2-2.2; d.f.=8, p=0.127, I2 36%).
Conclusions:
ASA/NSAIDs are not a risk factor for immediate PPB but the chance of delayed is increased.
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