Anaesthesia method
µg.kgPropofol, NRS, pain
INFILTRATION
All patients fasted for 6–8 h and abstained from drinking for 4 h. After patients entered the operating room, intravenous access was routinely opened, oxygen was administered by face mask, and heart rate, noninvasive blood pressure, bispectral index (BIS), respiration, and oxygen saturation were continuously monitored.Group OS: Propofol 1.5–2.5 mg/kg, esketamine 0.5 mg/kg and cis-atracurium 0.15–0.20 mg/kg were used for induction, and a laryngeal mask was placed after successful induction. Intraoperatively, esketamine 0.25 mg.kgGroup C: Propofol 1.5–2.5 mg/kg, sufentanil 0.25 µg/kg and cis-atracurium 0.15–0.20 mg/kg were used for induction, and a laryngeal mask was placed after successful induction.Propofol and remifentanil were used intraoperatively in both groups. The propofol dosage was adjusted under BIS monitoring to target a BIS value of between 45 and 60. The starting dose of remifentanil was 6 µg.kgPropofol and remifentanil were stopped immediately after surgery and sufentanil 0.1 µg/kg and ketorolac 30 mg were given intravenously. All patients were given peri-incisional infiltration by the surgeon before skin suturing and 15–20 ml of 0.5% ropivacaine (5 ml/incision) was used as a local anaesthetic. All patients were given a 5-HT3 receptor antagonist for prophylactic antiemetic before the end of the surgery. All patients were admitted to the post-anaesthesia recovery room (PACU) with a laryngeal mask after surgery for recovery from anaesthesia. After successively achieving spontaneous ventilation and consciousness, the laryngeal mask was removed and the patients were transferred to the general ward. All patients were allowed to drink water starting 6 h after surgery. All patients were routinely given oral ibuprofen extended-release capsules 0.3 g/12 h postoperatively for postoperative analgesia. If the numerical rating scale of pain (NRS) > 3 points, tramadol or fentanyl or morphine was given intravenously for analgesic rescue.