There is no consensus about the best bowel preparation prior to transanal endoscopic surgery
TES). Cleanliness and visibility in the rectosigmoid and rectum are of utmost importance,
possibly even more so than during colonoscopy, to facilitate safe, precise and efficient
resection of the rectal lesion and potentially adequate closure of the defect. Both Fleet
enemas and oral mechanical bowel preparation are considered standard of care in preparation
for TES. This single center two arm single blinded randomized controlled trial will compare
the effectiveness of Fleet enemas in comparison to Pico Salax oral mechanical bowel
preparation in cleansing the rectum as measured by a modified version of the Ottawa Bowel
Prep Scale.