Prospective randomized study of preoperative bowel cleansing for patients undergoing colorectal surgery

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Abstract
Three different methods of preoperative bowel preparation were tested in a prospective randomized trial examining efficacy and morbidity. In all, 163 patients were treated by gut irrigation with Ringer's lactate, Prepacol or polyethylene glycol (PEG). Fluid retention, cleansing effect, postoperative complications and subjective acceptance were documented. Relevant weight gain and decrease in haematocrit indicating fluid retention were seen only after the use of Ringer's lactate. There were no significant differences in bowel cleansing. In the Prepacol group the postoperative complication rate was significantly increased. Prepacol was tolerated best, with few side-effects. PEG was better tolerated than Ringer's lactate, but vomiting occurred in 2 and 21 per cent of patients respectively. PEG is most suitable for bowel preparation in patients undergoing colorectal surgery.