To explore the effects and possible mechanisms of dexmedetomidine combined with taVNS on the incidence of postoperative nausea and vomiting in female patients undergoing laparoscopic surgery
Women aged 18 to 65;
Elective laparoscopic surgery under general anesthesia;
Classified as American Society of Anesthesiologists (ASA) physical status I to II;
Capable of understanding the study procedures and various assessment scales and able to effectively communicate with the researchers;
Patients with ASA anesthesia classification ≥ III;
Poorly controlled hypertension, atrioventricular block ≥ second degree, obesity (BMI > 30 kg/m²);
Pregnant or breastfeeding;
Known allergy to drugs used in the study protocol, history of traumatic brain injury, history of gastrointestinal surgery;