186 patients who are planed to undergo elective breast cancer surgery under general anaesthesia into the following three groups: acupoint stimulation+dexamethasone (Group Acu, n=62), granisetron +dexamethasone (Group Gra, n=62), and dexamethasone alone (Group Dxm, n=62). The incidence of nausea, vomiting, and need for rescue antiemetics was recorded 2, 6, 24, and 48 h after surgery.
