The day before surgery, patients were given 2–4 bags of polyethylene glycol electrolyte powder dissolved in 1000–2000 mL warm water, and asked to drink 600 mL at first, followed by 250 mL every 10–15 min, and they had to fast after 8 p.m. On the morning of the operation, patients underwent a cleansing enema once.
Free full text: Click here