Quality optimisation in colonoscopy: A function of time of colonoscopy or bowel preparation

Haytham Abudeeb, Khurram Khan, Min Maung, Lee Malcomson, Alistair Brown

Research output: Contribution to journalArticlepeer-review


To test the hypothesis claimed in recent studies that quality of bowel preparation for colonoscopy could be influenced by the time of the day colonoscopy is performed. Do patientsin morning list have better bowel preparation than those on the afternoon list? Retrospective analysis of 736 consecutive patients who had colonoscopy from 1st August to 31st December 2012. Patients with poor bowel preparation (Boston Bowel Prep Score 6 or less) were identified (n = 242). Colonoscopy reports of these patients analysed. Patientswere stratified into two groups (am and pm) and results compared. Mean patient age 63.9 years (range 19-89). Male to female ratio 1:1. 92% of patients were given Moviprep. for bowel preparation. 32.9% (242/736) of patients were identified as having inadequate bowel preparation. 37.7% of morning list patients had poor bowel preparation. 26.7% of afternoon list patientshad poor bowel preparation. 14.7% (108/736) had incomplete colonoscopy, of which 26.9% (29/108) were due to poor bowel preparation. The commonest reasons for incomplete examination were patient discomfort & bowel looping. Our study demonstrates that morning session patients had poorer bowel preparation than the afternoon session patients in contrast to published evidence in recent literature. This implies that timing of bowel preparation is probably more important than timing of colonoscopy. Poor bowel preparation does not seem to have a significant impact on the colonoscopy failure rate in this series.

Original languageEnglish
Article number205
JournalPan African Medical Journal
Publication statusPublished - 26 Apr 2019


  • Bowel preparation
  • Colonoscopy
  • Incomplete
  • Poor bowel preparation


Dive into the research topics of 'Quality optimisation in colonoscopy: A function of time of colonoscopy or bowel preparation'. Together they form a unique fingerprint.

Cite this