Randomized Controlled Trail of Polyethylene Glycol vs Sodium Phosphate for Colonic Cleansing of Colonoscopy

All patients should receive dietary guidance, and eat a low-residue diet three days before colonoscopy. For polyethylene glycol group (group P): the day before colonoscopy, 750 mL (1 box) of polyethylene glycol solution should be drunk 2 hours after dinner; the other 1500 ml (2 boxes) of polyethylene glycol solution should be taken 4-6 hours before the examination. After oral laxatives were finished, 20 ml dimethicone would be taken orally as defoamer. All the enteroscopy should by performed by the same juniar clinician, and related indicators were recorded.

All patients should receive dietary guidance, and eat a low-residue diet three days before colonoscopy. For sodium phosphate group (group S), 750 mL (1 box) of sodium phosphate solution should be drunk 2 hours after dinner; and the other 750 mL (1 box) of sodium phosphate solution should be taken 4-6 hours before the examination. After oral laxatives were finished, 20 ml dimethicone would be taken orally as defoamer. All the enteroscopy should by performed by the same clinician, and related indicators were recorded.