Combination group:Subject's Neiguan Point will be treated with TEAS 30 minutes before anesthesia,they will be given ropisetron 5mg before the end of operation.

Effect of transcutaneous electrical acupoint stimulation on postoperative nausea and vomiting after laparoscopic surgery under general anesthesia in elderly patients

Effect of transcutaneous electrical acupoint stimulation on postoperative nausea and vomiting after laparoscopic surgery under general anesthesia in elderly patients