Development and validation of a machine learning-based predictive model for postoperative nausea and vomiting in patients undergoing day-case laparoscopic cholecystectomy: a single-centre retrospective study

The study finds that postoperative pain, LESS method and cisatracurium dosage are closely related to the occurrence of PONV in day-case LC. However, these three variables have rarely been reported in the previous literature and worth further research. The prediction model obtained in this study provides a meaningful reference for the perioperative prevention and treatment of PONV in day surgery.