Results
PONV
Finally, 174 patients completed the study, and the types of surgeries were orthopedic (n = 80), rhinologic (n = 47), urologic (n = 29), and others (n = 18). The incidence of PONV up to 48 h postoperatively was significantly lower in group DR than in group C. The incidence of PONV up to 0–1 h postoperatively was significantly lower in groups R and DR than in group C. The usage pattern of rescue antiemetics was consistent with the incidence of PONV. The percentage of patients requiring rescue analgesics 0–1 h postoperatively was significantly lower in groups R and DR than in group C.