• Jason R West, Catherine Lott, Lee Donner, Marc Kanter, and Nicholas D Caputo.
• Lincoln Medical and Mental Health Center, Department of Emergency Medicine, Weill Cornell Medicine of Cornell University, Bronx, NY, United States. Electronic address: westj3@nychhc.org.
• Am J Emerg Med. 2018 Jul 1; 36 (7): 1151-1154.

IntroductionNo study has assessed predictors of physician choice between the succinylcholine (Succ) and rocuronium (Roc) for rapid sequence intubation (RSI) during the initial resuscitation of trauma patients in the emergency department (ED).MethodsWe retrospectively evaluated of the use of Succ and Roc for adult trauma patients undergoing RSI at a Level 1 trauma center. The primary outcome was to identify factors affecting physician choice of paralytic agent for RSI analyzed by cluster analysis using pre-intubation vital signs and early mortality. The secondary outcome was to identify factors influencing physician choice of paralytic agent using a logistic regression model reported as adjusted odds ratios (aOR).ResultsThe analysis included 215 patients, including 148 receiving Succ and 67 receiving Roc. The two groups were similar in regard to age, provider level of training, mean GCS (10 vs. 10) and median ISS (27 vs. 27). Cluster analysis using peri-intubation patient vital signs and early mortality indicates that patients with predominantly abnormal vital signs and early mortality were more likely to receive Roc (74%) than those without abnormal vital signs prior to intubation or early mortality (24%). Hypoxemia prior to RSI (aOR 12.3 [2.5-60.9]) and the use of video laryngoscopy (VL) (aOR 5.5 [1.2-24.6]) were associated with the choice to use Roc.ConclusionsRoc was more frequently chosen for paralysis in the patient cluster with predominantly abnormal peri-intubation vital signs and higher rate of early ED mortality. The use of Roc was associated with hypoxemia prior to RSI and VL.Copyright © 2017 Elsevier Inc. All rights reserved.

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