Objective: To investigate the effect of electroacupuncture (EA) at different time-points on postoperative gastrointestinal function in patients undergoing colorectal cancer surgery.
Methods: Eighty patients with colorectal cancer undergoing laparotomy were randomly assigned to intravenous anesthesia, EA A, EA B, and EA C groups (=20 cases in each group). All the patients in the four groups received intravenous anesthesia with midazolam, sufentanil, cisatracurium besylate and Propofol, postoperative gastrointestinal decompression and drug analgesia.