This study aims to certify the effectiveness of percutaneous electrical nerve stimulation at Pericardium 6 (PC6) via a wearable equipment during perioperative period on preventing postoperative nausea and vomiting.
Patients aged 18-65 years;
Patients undergoing elective laparoscopic surgery;
American Society of Anaesthesiologists(ASA) Grade 1 to 3;
Anesthesia: General Anesthesia, Tracheal Intubation;
BMI: ≥18, <28;
Patients or their family members are able to comprehend the study protocol and are willing to participate in this research by providing written informed consent.
There are incisions or scars in the wearing position of the device;
There is a local infection in the wearing position of the device;
upper extremity nerve injury;
history of spinal cord surgery;
Participated in other clinical trials within 4 weeks;
suffering from severe central nervous system disease or mental disorder;
Patients need to return to the ICU after surgery.
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Method and analysis: A total of approximately 245 patients undergoing elective laparoscopic surgery will be enrolled. Participants will be randomly assigned to either a electrical stimulation group or a placebo group, with computer-generated randomization and concealed allocation using sealed envelopes. The electrical stimulation group will receive PC point electrical stimulation 30 minutes before surgery until 24 hours postoperatively, while the placebo group will wear a wristband without stimulation. The primary outcome will be the incidence of postoperative nausea and vomiting, with secondary outcomes including the incidence of nausea and vomiting within 24 hours after surgery, gastrointestinal and hemodynamic indices, postoperative recovery, hospital stay and cost, and complications.