• Susan M Neufeld and Christine V Newburn-Cook.
• University of Alberta, Edmonton, Alberta, Canada.
• J Neurosurg Anesthesiol. 2007 Jan 1;19(1):10-7.

AbstractThe purpose of this meta-analysis was to assess the efficacy of prophylactic administration of 5-HT3 receptor antagonists for postoperative nausea and vomiting in neurosurgical patients at 24 and 48+ hours. After a systematic search, 7 published randomized placebo controlled trials involving 448 craniotomy patients (222 treatment, 226 control) were included in the meta-analysis. Study drugs included ondansetron, granisetron, and tropisetron. The cumulative incidence of emesis was significantly reduced in the treatment group at 24 hours [relative risk (RR)=0.50, 95% confidence interval (CI): 0.38-0.66] and 48+ hours (RR=0.52, 95% CI: 0.36-0.75). There were no differences between the treatment and control groups in the cumulative incidence of nausea at 24 hours (RR=0.76, 95% CI: 0.54-1.06) and 48+ hours (RR=0.81, 95% CI: 0.62-1.06). The cumulative incidence of both nausea and vomiting continued to increase after 24 hours in both groups. Despite the ability of 5-HT3 receptor antagonists to reduce emetic episodes, future investigations should seek to address the control of postoperative nausea and to reduce further postoperative emesis in this population.

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