• Justin L Benoit, Ryan B Gerecht, Michael T Steuerwald, and Jason T McMullan.
• University of Cincinnati, College of Medicine, Department of Emergency Medicine, 231 Albert Sabin Way PO Box 670769, Cincinnati, OH, 45267-0769, USA. Electronic address: justin.benoit@uc.edu.
• Resuscitation. 2015 Aug 1;93:20-6.

ObjectiveOverall survival from out-of-hospital cardiac arrest (OHCA) is less than 10%. After initial bag-valve mask ventilation, 80% of patients receive an advanced airway, either by endotracheal intubation (ETI) or placement of a supraglottic airway (SGA). The objective of this meta-analysis was to compare patient outcomes for these two advanced airway methods in OHCA patients treated by Emergency Medical Services (EMS).MethodsA dual-reviewer search was conducted in PubMed, Scopus, and the Cochrane Database to identify all relevant peer-reviewed articles for inclusion in the meta-analysis. Exclusion criteria were traumatic arrests, pediatric patients, physician/nurse intubators, rapid sequence intubation, video devices, and older airway devices. Outcomes were (1) return of spontaneous circulation (ROSC), (2) survival to hospital admission, (3) survival to hospital discharge, and (4) neurologically intact survival to hospital discharge. Results were adjusted for covariates when available and combined using the random effects model.ResultsFrom 3,454 titles, 10 observational studies fulfilled all criteria, representing 34,533 ETI patients and 41,116 SGA patients. Important covariates were similar between groups. Patients who received ETI had statistically significant higher odds of ROSC (odds ratio [OR] 1.28, 95% confidence interval [CI] 1.05-1.55), survival to hospital admission (OR 1.34, CI 1.03-1.75), and neurologically intact survival (OR 1.33, CI 1.09-1.61) compared to SGA. Survival to hospital discharge was not statistically different (OR 1.15, CI 0.97-1.37).ConclusionsPatients with OHCA who receive ETI by EMS are more likely to obtain ROSC, survive to hospital admission, and survive neurologically intact when compared to SGA.Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

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