Transcutaneous Electrical Acustimulation on Postoperative Bowel Function Recovery in Elderly Patients

Inclusion Criteria: * Age ≥ 65 years old. * Elective minimally invasive (laparoscopic or robotic) resection of colorectal cancer. * American Society of Anesthesiologists classification (ASA) 1-4. * Able to understand the research process and the use of various assessment scales, and able to communicate effectively with the researchers. * The patient voluntarily participates in this study and signs the informed consent form. Exclusion Criteria: * Previous history of abdominal gastrointestinal surgery. * Planned for palliative or emergency surgery. * Planned for open abdominal surgery or creation of a new stoma. * Transfer to ICU. * Diagnosed with severe heart, liver, kidney or mental system diseases. * Patients with implanted cardiac pacemakers. * Patients currently using or having used in the past month glucagon-like peptide-1 (GLP-1) receptor agonists, dual glucose-dependent insulinotropic polypeptide (GIP) receptor agonists, and sodium-glucose cotransporter-2 (SGLT-2) inhibitors. * Planned to use epidural anesthesia or epidural analgesia. * Presence of local skin lesions, infection at the stimulation site, or obvious skin allergy or severe skin sensitivity to electrodes/adhesive materials. * Participated in other clinical studies within the past 3 months or received acupuncture treatment within the past month. * Other conditions that the investigator considers make the patient unsuitable for participation in this study.