Comparison of ondansetron and meperidine for treatment of postoperative shivering: A randomized controlled clinical trial

Mahoori, A.R and Noroozinia, H and Hasani, E and Soltanahmadi, M (2014) Comparison of ondansetron and meperidine for treatment of postoperative shivering: A randomized controlled clinical trial. Iranian Red Crescent Medical Journal, 16 (8).

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Abstract

The involved neurotransmitter pathways in the postoperative shivering (POS) are poorly understood. Recently, 5-hydroxytryptamine 3 (5-HT3) receptor antagonists have been reported to prevent POS. We investigated the effect of ondansetron, a 5-HT3 antagonist that is used to treat postoperative nausea and vomiting, on shivering. Objectives: This study aimed to compare the efficacy of ondansetron and meperidine in the treatment of shivering after general anesthesia. Patients and Methods: In this double-blinded randomized clinical trial, 83 patients (age range, 18-60 years) who had shivering after general anesthesia were randomly allocated to any of these three groups: Group A, (number = 27) received 4 mg of intravenous ondansetron, Group B, (number = 27) received 8 mg of intravenous ondansetron, and Group C, (number = 29) received 0.4 mg/kg of intravenous meperidine at recovery room. The surface temperatures and the incidence as well as intensity of shivering were recorded. Results: Shivering was controlled in 16 patients (59%) in Group A, 22 (81%) in Group B, and 25 (86%) in Group C (P = 0.01). Within each group, there were no significant differences among the surface temperature in recovery room. Patients in groups A and B had significantly lower incidence of nausea and vomiting than group C (P = 0.01). Conclusions: Ondansetron and meperidine have similar effects on shivering. We concluded that 8 mg of intravenous ondansetron can control shivering and this is the dose of choice, especially in patients with POS with nausea and vomiting.

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