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J Anaesthesiol Clin Pharmacol. 2019 Apr-Jun;35(2):182-187. doi: 10.4103/joacp.JOACP_196_17.

A randomized study to compare palonosetron with ondansetron for prevention of postoperative nausea and vomiting following middle ear surgeries.

Author information

1
Department of ENT and Head and Neck Surgery, Medanta the Medicity Hospital, Gurugram, Haryana, India.

Abstract

Background and Aims:

Postoperative nausea and vomiting (PONV) has multifactorial etiology. It is a commonly encountered morbidity after anesthesia specially following middle ear surgery. Various antiemetic medications have been tried with mixed responses. Palonosetron is a newer 5-hydroxytryptamine (5-HT3) receptor antagonist marketed for PONV prophylaxis. This study was designed to compare the efficacy of palonosetron and ondansetron in preventing PONV after middle ear surgeries.

Material and Methods:

One hundred patients of ASA class 1 or 2, aged 18 years and above, weighing between 40 and 90 kg scheduled for elective middle ear surgeries were randomly assigned into palonosetron group (n = 50) and ondansetron group (n = 50). Palonosetron was administered in dose of 1 mcg/kg maximum up to 75 mcg and ondansetron in dose of 0.1 mg/kg maximum up to 8 mg. Intraoperative monitoring of QTc interval was also done to see any significant change after the antiemetic administration. The incidence of nausea, vomiting, and side effects were recorded over 2, 12, and 24 hours postoperatively. All parameters were compared between the two groups as mean ± standard deviation and as count (%). Two sided P values of <0.05 were considered significant.

Results:

The incidence of PONV (P = 0.002), nausea (P = 0.0002) and vomiting (P = 0.006) was significantly lower in palonosetron group than in ondansetron group in 2- to 12-hour period. QTc interval prolongation, a known side effect of ondansetron was not found in palonosetron group intraoperatively.

Conclusion:

Palonosetron was found to be superior to ondansetron up to 12 hours after the surgery with no significant effect on QTc interval.

KEYWORDS:

Middle ear surgery; ondansetron; palonosetron; postoperative nausea and vomiting

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