Mornings May Be Ideal Time of Day for Colonoscopies

Afternoon colonoscopies up risk of incomplete colonoscopy, inadequate bowel preparation

TUESDAY, Dec. 26 (HealthDay News) -- Morning may be the best time of day to undergo a colonoscopy, researchers report in the December issue of the American Journal of Gastroenterology.

Madhusudhan R. Sanaka, M.D., of MetroHealth Medical Center in Cleveland, Ohio, and colleagues conducted a retrospective chart review of 2,087 outpatient colonoscopies including 1,084 morning and 999 afternoon procedures. All patients had similar risk factors for undergoing incomplete colonoscopies.

Patients who had the procedure in the afternoon had a higher incompletion rate than those receiving colonoscopies in the morning (6.5 versus 4.1 percent). Moreover, 19.7 percent of patients who had the procedure in the afternoon had inadequate bowel preparation, compared with 15.4 percent among those who underwent a morning colonoscopy. The findings held even after researchers excluded all incomplete colonoscopies due to poor bowel preparation precluding examination.

"We propose a strategy of preferentially scheduling all colonoscopies in the morning, which might result in a higher completion rate and better quality of colonoscopy," the authors conclude.

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