The impact of transcutaneous electrical acupoint stimulation on gastrointestinal function after laparoscopic pancreaticoduodenectomy

INTERVENTION: Experimental group:acupoint electrical stimulation;Control group:The control group was connected to an electrical stimulator at the same acupoint without stimulation; CONDITION: Pancreatic tumors, duodenal tumors PRIMARY OUTCOME: Postoperative gastrointestinal motility indicators; SECONDARY OUTCOME: gastrointestinal hormones;Autonomic nervous activity;Postoperative recovery; INCLUSION CRITERIA: 1. Select 80 cases of elective laparoscopic pancreaticoduodenectomy in the Department of Hepatobiliary and Pancreatic Surgery of this hospital; 2. Age 20–80 years; 3. American Society of Anesthesiologists (ASA) classification I–II; 4. Cardiac function stage II or above; 5. No neurological or muscular diseases; 6. Patients who agree to participate in this study.