换一批
换一批摘要To the editor:In the recent article of Fang and colleagues1 assessing prophylactic efficacy of a single-dose of dexamethasone before anesthesia induction on postoperative nausea and vomiting (PONV) in patients undergoing microvascular decompression for facial spasm,they showed that dexamethasone did not prevent PONV.Actually,meta-analyses of double-blind randomized controlled trials comparing dexamethasone with controls indicate that this antiemetic is effective in the prophylaxis of postoperative vomiting and reduced use of rescue antiemetics.2 In our views,some limitations of this study design may have made interpretation of their conclusions questionable.
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DOI
10.3760/cma.j.issn.0366-6999.20141738
发布时间
2014-10-28
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