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Anesth Analg. 1996 Aug;83(2):304-13.

A comparison of costs and efficacy of ondansetron and droperidol as prophylactic antiemetic therapy for elective outpatient gynecologic procedures.

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  • 1Department of Anesthesiology and Pain Management, University of Texas, Southwestern Medical Center at Dallas 75235-9068, USA.


Ondansetron and droperidol are both effective prophylactic antiemetics for gynecologic outpatient procedures. However, increased drowsiness, delayed discharge, and postdischarge restlessness may occur with droperidol, and ondansetron is costly. In this prospective, randomized, double-blind, placebo-controlled study involving 161 women, we compared the efficacy, safety, and cost-effectiveness of ondansetron (4 mg intravenously [i.v.] with droperidol (0.65 mg or 1.25 mg i.v.) in the prevention of postoperative nausea and vomiting (PONV) after outpatient gynecologic surgery. The incidence of PONV, times to achieving preset recovery criteria, and patient-evaluated visual analog scales for sedation, anxiety, pain, and nausea were recorded, along with postdischarge emetic episodes, medications, quality of sleep, and time to resumption of food intake, normal activity, and return to work. A decision analysis tree was used to divide each data set into nine mutually exclusive subgroups, and costs and probabilities were assigned to each subgroup. The cost-effectiveness ratio was determined by summing these weighted costs and dividing by the number of patients free from both PONV and side effects of antiemetic therapy. The incidence of PONV in the hospital and after discharge, the need for rescue antiemetic therapy, and recovery and discharge times were similar for the ondansetron and both droperidol groups but differed significantly from those for the placebo group. The cost-effectiveness ratios for both droperidol 0.65 mg and 1.25 mg groups were significantly lower than those for the ondansetron and placebo groups. We conclude that droperidol 0.625 mg i.v. provides antiemetic prophylaxis comparable to that of ondansetron 4 mg i.v. without increasing side effects or delaying discharge and is most cost-effective.

[PubMed - indexed for MEDLINE]
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