A Prospective Randomized Controlled Study on the Effects of Electroacupuncture at the "Shenmen-Neiguan" Acupoints on Postoperative Sleep Disorders in Patients Undergoing Elective Laparoscopic Abdominal Major SurgeryElective Laparoscopic Major Abdominal Surgery

INTERVENTION: Electroacupuncture group:Seven days after surgery, the patient was treated with electroacupuncture at the bilateral Shenmen and Neiguan acupoints. The electroacupuncture frequency was 2Hz/100Hz, the intensity was 1mA, and the duration was 30 minutes per session for seven consecutive days;control group:Do not perform electroacupuncture intervention; CONDITION: Postoperative Sleep Disorders PRIMARY OUTCOME: Athens Insomnia Scale Score; SECONDARY OUTCOME: Hospital anxiety and depression scale;Visual Analogue Scale; INCLUSION CRITERIA: 1) Elective laparoscopic abdominal surgery (laparoscopic radical resection of colorectal cancer, laparoscopic liver resection) 2) Age: 18‐65 years old 3) ASA: Level I‐III 4)BMI:18.5‐30 kg/m2 5) No history of related medication or electroacupuncture allergy 6) Clear consciousness and normal communication 7) Agree to participate in this study and sign the informed consent form for this study