Acupoint Stimulation Alleviates Postoperative Nausea and Vomiting

Effect of Transcutaneous Electrical Acupoint Stimulation on Postoperative Nausea and Vomiting After Liver Surgery

Incidence of postoperative nausea and vomiting (PONV) could be high as 60% after liver surgery. Acupoint stimulation has been proved to decrease PONV. In this study, we will investigate the effect of transcutaneous electrical acupoint stimulation on incidence of PONV after liver surgery.

Inclusion Criteria:

• age ≥18 years
• scheduled for elective liver surgery under general anesthesia

Exclusion Criteria:

• body mass index less than 18 kg/m2 or higher than 30 kg/m2
• American Society of Anesthesiologists status higher than Ⅲ
• patients with contraindication to transcutaneous electrical stimulation, including skin damage, infection or implantable electrical device
• suspected or existed abuse of drug or alcohol
• pregnant or breeding women
• history of neurological or psychiatric disease