Impact of buccal acupuncture at different points on the adverse events following fetal extraction during cesarean delivery: A randomized, controlled, double-blind, clinical trial

INTERVENTION: Control group:spinal anesthesia alone;Experimental group 1:spinal anesthesia and buccal acupuncture therapy, including bilateral Triple Energizer (TE) point and cervical points ;Experimental group 2:spinal anesthesia and buccal acupuncture therapy, including bilateral Triple Energizer (TE) point and dorsal points ;Experimental group 3:spinal anesthesia and buccal acupuncture therapy, including bilateral Triple Energizer (TE) point and lumbar points ; CONDITION: Intraoperative adverse events PRIMARY OUTCOME: Chest discomfort(Y/N);shortness of breath(Y/N);Numerical score of Nauseavisual analog scale;Vomiting(Y/N); SECONDARY OUTCOME: Numerical score of Visual Analogue Scale;Tropisetron consumption during operation;Oxycodone consumption during operation;Times of perioperative antiemetics applied;Time of first perioperative application of antiemetics;Exhaustion (Y/N);Postoperative nausea and vomiting (Y/N);Basal heart rate\blood pressure\SpO2;heart rate\blood pressure\SpO2;heart rate\blood pressure\SpO2;the levels of CRP;the levels of IL‐6 and IL‐10;the level of TNF‐a;shivering(Y/N);the levels of prostaglandins; INCLUSION CRITERIA: 1.Postpartum women aged 23‐30 who have undergone cesarean section; 2.Pregnancy weeks are 37‐41 weeks, parity <=2, and parity <= 3; 3.No history of adverse pregnancy and childbirth, no pregnancy complications; 4.The American Society of Anesthesiologists (ASA) classifies physical condition into grades I‐II; 5.Having systematic prenatal care and no underlying diseases; 6.Voluntarily participate in this research project and sign an informed consent form.