Outcomes
postoperative nausea, vomiting, dizziness, hallucinations
ADVERSE EFFECTS, SECONDARY
The primary outcome was sufentanil consumption at 24 hours postoperatively, and secondary outcomes were sufentanil consumption at 6 hours postoperatively, VAS scores at rest and during activities at 6, 24, and 48 hours postoperatively, time to bowel function return(the time to pass flatus as the sign of bowel function return), time to first lactation, adverse effects such as postoperative nausea, vomiting, dizziness, and hallucinations, and neonatal neurobehavioral scores.