Outcomes
PONV, nausea, hypoxemia, pain
ADVERSE EVENTS, SECONDARY
The primary outcome included the incidence of nausea within 24 h after surgery. We use the simplified PONV impact scale by Myles et al. to record PONV [The secondary outcomes included the incidence of intraoperative hemodynamic adverse events, defined as MAP exceeding ± 20%, pulse rate > 100 beats/min or < 40 beats/min; QoR-40 scores 24 h after surgery; pain scores assessed by VAS in the PACU and 2 h, 4 h, 6 h, and 24 h after surgery; utilization rate and dosage of remedial analgesics after extubation; postoperative hypoxemia, defined as a SpO