术后恶心呕吐是最常见的麻醉及手术并发症之一~[1,2]。呕吐可导致严重的并发症,如误吸、脱水、电解质失衡,诱发心律失常等。10%的外科手术患者在术后恢复室发生术后恶心呕吐(PONV),术后24 h内,发生PONV的患者比例可升至30%~[3]。PONV已知的危险因素包括女性、使用阿片类镇痛药物、非吸烟、有PONV史或晕动病史四类~[4]。而腹腔镜手术也是引起PONV的高危因素之一。目前常采用的预防治疗方案 Postoperative nausea and vomiting is one of the most common complications of anesthesia and surgery [1,2]. Vomiting can lead to serious complications such as aspiration, dehydration, electrolyte imbalance, induced arrhythmia and so on. Postoperative nausea and vomiting (PONV) occurred in 10% of the surgical patients in the postoperative recovery room. The percentage of patients with PONV within 24 hours after surgery may increase to 30%. [3] Known risk factors for PONV include women, opioid analgesics, non-smoking, history of PONV or a history of motion sickness [4]. Laparoscopic surgery is also one of the risk factors of PONV. Currently used in prevention and treatment programs