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Gastrointest Endosc. 2011 Mar;73(3):520-3. doi: 10.1016/j.gie.2010.10.034. Epub 2010 Dec 31.

Onset and clinical course of bleeding and perforation after outpatient colonoscopy: a population-based study.

Author information

1
Department of Medicine, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.

Abstract

BACKGROUND:

Endoscopists are advised to measure and report their rates of colonoscopy-associated perforation and bleeding. However, evidence from population-based studies is lacking on the time period over which monitoring is needed to detect these adverse events.

OBJECTIVE:

To determine the time course of perforation or bleeding requiring hospital admission within 30 days after outpatient colonoscopy.

DESIGN:

Population-based cohort study.

SETTING:

Ontario, Canada.

PATIENTS AND INTERVENTIONS:

Men and women, 50 to 75 years old who underwent an outpatient colonoscopy during the period from April 1, 2002 to March 31, 2003.

MAIN OUTCOME MEASUREMENTS:

Hospitalization for colonoscopy-related perforation or bleeding within 30 days after the procedure.

RESULTS:

We identified 67,632 patients who had an outpatient colonoscopy, of whom 37 were admitted for hospitalization with perforation and 83 with bleeding within 30 days after the procedure. For those with a perforation, 34 of 37 (92%) were admitted within 2 days and all within 5 days. For those with bleeding, 30 of 83 (36%) were admitted within 2 days and 80 of 83 (96%) within 14 days.

LIMITATIONS:

Lack of information on medication use.

CONCLUSIONS:

After outpatient colonoscopy, use of a 14-day time period for reporting would capture all perforations and the majority (96%) of bleeds requiring hospital admission.

PMID:
21195406
DOI:
10.1016/j.gie.2010.10.034
[Indexed for MEDLINE]

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