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Updated: Dec 10, 2025

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
Published on: July 11, 2025
Optimising bowel preparation before colonoscopy
Warren Chapman1, Sarah Marshall2
1Clinical Endoscopist, Sandwell and West Birmingham NHS Trust.
Abstract:
A clean colon is required for a colonoscopy to be effective. Therefore, patients undergo a bowel preparation in advance of the procedure to clear the colon. Typically, this involves drinking 2 litres of polyethylene glycol or macrogol (PEG) solution, but dislike of the taste or having to drink such a large volume causes some patients not to adhere to this regimen. To address this, a PEG solution has been developed that requires patients to drink only 1 litre of bowel preparation in two flavours. The hope is this will increase patient adherence.
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