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β-Blockers versus calcium channel blockers for acute rate control of atrial fibrillation with rapid ventricular response

a systematic review

Martindale, Jennifer L.; deSouza, Ian S.; Silverberg, Mark; Freedman, Joseph; Sinert, Richard

European Journal of Emergency Medicine: June 2015 - Volume 22 - Issue 3 - p 150–154
doi: 10.1097/MEJ.0000000000000227
REVIEW ARTICLE
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This is a systematic review of the literature to compare the efficacy of calcium channel blockers to β-blockers for acute rate control of atrial fibrillation with rapid ventricular response in the emergency department setting. PubMed, EMBASE, and the Cochrane Registry were searched. Relative risk (95% confidence interval) was calculated between drugs and methodological quality of included studies was evaluated. Of the 1003 studies yielded by our initial search, two met inclusion criteria and provided sufficient data. These were randomized double-blinded studies (n=92) comparing intravenous diltiazem with intravenous metoprolol. The combined relative risk of acute rate control by diltiazem versus metoprolol was 1.8 (95% confidence interval 1.2–2.6). On the basis of the paucity of available evidence, diltiazem may be more effective than metoprolol in achieving rapid rate control, but high-quality randomized studies are needed.

Department of Emergency Medicine, SUNY Downstate/Kings County Hospital, New York, Brooklyn, USA

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Correspondence to Jennifer L. Martindale, MD, Department of Emergency Medicine, SUNY Downstate, 450 Clarkson Ave, Box 1228, Brooklyn, NY 11203, USA Tel: +1 718 245 2973; fax: +1 718 245 4799; e-mail: martindale.jen@gmail.com

Received July 7, 2014

Accepted October 29, 2014

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