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The incidence of moderate to severe PONV during postoperative 48 hours. PONV, postoperative nausea and vomiting; patients with moderate to severe PONV, patients with VNRS ≥4 or with retching or vomiting at either time period; Des, patients receiving balanced anesthesia; TIVA, patients receiving total intravenous anesthesia; PACU, post anesthetic care unit; VNRS, verbal numerical rating scale. *p<0.05 vs. Des group.
