Timing and Frequency of Bowel Activity in Patients Ingesting Sodium Picosulphate-Magnesium Citrate and Adjuvant Bisacodyl for Colon Cleansing Before ColonoscopyReport as inadecuate

Timing and Frequency of Bowel Activity in Patients Ingesting Sodium Picosulphate-Magnesium Citrate and Adjuvant Bisacodyl for Colon Cleansing Before Colonoscopy - Download this document for free, or read online. Document in PDF available to download.

Canadian Journal of Gastroenterology - Volume 25 2011, Issue 12, Pages 663-666

Original Article Gastrointestinal Diseases Research Unit, Kingston General Hospital, Queen’s University, Kingston, Ontario, Canada

Received 7 April 2011; Accepted 25 May 2011

Copyright © 2011 Hindawi Publishing Corporation. This open-access article is distributed under the terms of the Creative Commons Attribution Non-Commercial License CC BY-NC http:-creativecommons.org-licenses-by-nc-4.0-, which permits reuse, distribution and reproduction of the article, provided that the original work is properly cited and the reuse is restricted to noncommercial purposes.


BACKGROUND: Despite the wealth of research investigating bowel cleansing efficacy, there are very little data on the timing or frequency of bowel movements after each agent is ingested.

OBJECTIVE: To examine the effect of each component of a three-day combined sodium picosulphate-magnesium citrate PSLX and bisacodyl regimen on the timing and frequency of bowel activity in patients undergoing colonoscopy.

METHODS: Outpatients booked for colonoscopy were asked to complete a diary of their bowel preparation that tracked the timing of bowel movements. Bowel preparation quality was assessed using the Ottawa Bowel Preparation Scale. Bowel activity was compared with baseline and correlated with colon cleansing. Subgroup analysis was performed examining the effect of timing of the procedure and split-dose regimens.

RESULTS: One hundred patients undergoing colon cleansing received bisacodyl 10 mg at 17:00 three days and two days before the day of colonoscopy. In one group, both sachets of PSLX were given the night before colonoscopy, while the second group, whose colonoscopies were scheduled after 11:00, ingested one sachet the night before and the second sachet at 06:00 on the day of colonoscopy. Patients had a mean of 1.7 bowel movements per day in the seven days before starting the cleansing regimen. Both doses of bisacodyl tablets resulted in a significant increase in the mean number of bowel movements compared with baseline 3.3-day first dose; 3.8-day second dose P=0.03 and 0.001, respectively. Each dose of PSLX also resulted in a significant increase in bowel movement frequency compared with baseline, with means of 4.4, 6.3 and 4.5 bowel movements after each dose. The mean time to the final bowel movement following the second sachet of PSLX was 8.9 h when taken the night before, and 3.9 h when taken the morning of the procedure. Bowel preparation quality significantly correlated with bowel frequency when total bowel movements were considered and when only the effects of bisacodyl were accounted for P<0.01 for each.

DISCUSSION: These data demonstrate that the addition of bisacodyl before PSLX ingestion has a significant additive effect on bowel frequency and correlates with bowel cleansing quality. The timing of the resulting bowel movements have practical implications for sleep and travel times to endoscopy suites.

Author: Stephen Vanner and Lawrence C Hookey

Source: https://www.hindawi.com/


Related documents