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A Clinical Usefulness of Premedication with Hyoscine N-butyl Bromide in Colonoscopy  

Kim, Eun-Ok (Department of Internal Medicine, Cheonan Hospital, Soonchunhyang University College of Medicine)
Lee, Suck-Ho (Department of Internal Medicine, Cheonan Hospital, Soonchunhyang University College of Medicine)
Kim, Duk-Su (Department of Internal Medicine, Cheonan Hospital, Soonchunhyang University College of Medicine)
Lee, Chang-Kyun (Department of Internal Medicine, Cheonan Hospital, Soonchunhyang University College of Medicine)
Lee, Tae-Hoon (Department of Internal Medicine, Cheonan Hospital, Soonchunhyang University College of Medicine)
Chung, Il-Kwun (Department of Internal Medicine, Cheonan Hospital, Soonchunhyang University College of Medicine)
Park, Sang-Heum (Department of Internal Medicine, Cheonan Hospital, Soonchunhyang University College of Medicine)
Kim, Sun-Joo (Department of Internal Medicine, Cheonan Hospital, Soonchunhyang University College of Medicine)
Publication Information
Clinical Endoscopy / v.41, no.1, 2010 , pp. 10-15 More about this Journal
Abstract
Background/Aims: We conducted a prospective, randomized, double-blinded, placebo-controlled trial to investigate the effect of hyoscine-N-butyl bromide during colonoscopy. Methods: A total of 133 patients undergoing colonoscopy were randomized to receive either 20 mg of hyoscine-N-butyl bromide (n=70) or normal saline solution (n=63) via intramuscular injection as premedication. Results: The mean cecal intubation time and withdrawal time in the hyoscine-N-butyl bromide group were significantly shorter than those of the control group ($5.26{\pm}2.78$ min vs. $6.74{\pm}4.89$ min; p=0.032, $5.42{\pm}1.54$ min vs. $6.18{\pm}2.54$ min; p=0.038, each). The spasm grade in the hyoscine-N-butyl bromide group was significantly lower than that of the control group (p<0.001). No significant differences were found in the polyp detection rate (15.7% vs. 28.6%; p=0.073) and adenoma detection rate (10.0% vs. 15.9%; p=0.311). Difficulty of colonoscopy for the endoscopists and nurses (p=0.853; p=0.732), the patient's comfort (p=0.891) and the patient's willingness to repeat colonoscopy (85.7% vs. 82.5%; p=0.932) were also similar in both groups. Conclusions: Premedication with intramuscularly administered hyoscine-N-butyl bromide do not demonstrate any additional benefits except reducing the colonoscopy insertion time.
Keywords
Colonoscopy; Premedication; Antispasmodics; Hyoscine-N-butyl bromide;
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