A randomized study on the effect of different bowel preparation methods before colonoscopy in elderly patients

Abstract

Objective To investigate the clinical effects of different bowel preparation methods before colonoscopy in elderly patients. Methods A total of 84 elderly patients undergoing colonoscopy during July 2015 and July 2016 were divided into two groups (n=42 for each group) . Repeat group was treated with 1 L Polyethylene Glycol (PEG) orally for bowel preparation at night before the colonoscopy and 2 L PEG on the day of colonoscopy respectively. Single group was treated with 3 L PEG for bowel preparation on the day of colonoscopy. In the two groups, bowel preparation efficacy, patient′s compliance, tolerability and adverse reactions were evaluated. Results According to the Boston bowel preparation scale (BBPS) , the score of total colon cleaning effect was (7.49±1.33) in repeat group and (5.29±1.45) in single group with a significant difference (t=2.78, P 0.05) . Conclusions It is the proper method for elderly patients who are treated with PEG orally and repeatedly before colonoscopy. Key words: Aged; Bowel preparation; Repeat oral method; Signal oral method