• Lionel Lamhaut, Alice Hutin, Etienne Puymirat, Jérome Jouan, Jean-Herlé Raphalen, Romain Jouffroy, Murielle Jaffry, Christelle Dagron, Kim An, Florence Dumas, Eloi Marijon, Wulfran Bougouin, Jean-Pierre Tourtier, Frédéric Baud, Xavier Jouven, Nicolas Danchin, Christian Spaulding, and Pierre Carli.
• SAMU de Paris and intensive care unit, Necker Hospital, Assistance Publique-Hopitaux de Paris (APHP), 149 rue de de Sevres 75015 Paris, France; Paris Sudden Death Expertise Center, Paris Cardiovascular Research Center (PARCC), INSERM Unit 970, Paris, France. Electronic address: lionel@lamhaut.fr.
• Resuscitation. 2017 Aug 1; 117: 109-117.

BackgroundOut of hospital cardiac arrest (OHCA) mortality rates remain very high with poor neurological outcome in survivors. Extracorporeal cardiopulmonary resuscitation (ECPR) is one of the treatments of refractory OHCA. This study used data from the mobile intensive care unit (MOICU) as part of the emergency medical system of Paris, and included all consecutive patients treated with ECPR (including pre-hospital ECPR) from 2011 to 2015 for the treatment of refractory OHCA, comparing two historical ECPR management strategies.MethodsWe consecutively included refractory OHCA patients. In Period 1, ECPR was indicated in selected patients after 30min of advanced life support; in- or pre-hospital implementation depended on estimated transportation time and ECPR team availability. In Period 2, patient care relied on early ECPR initiation after 20min of resuscitation, stringent patient selection, epinephrine dose limitation and deployment of ECPR team with initial response team. Primary outcome was survival with good neurological function Cerebral Performance Category score (CPC score) 1 and 2 at ICU discharge or day 28.FindingsA total of 156 patients were included. (114 in Period 1 and 42 in Period 2). Baseline characteristics were similar. Mean low-flow duration was shorter by 20min (p<0.001) in Period 2. Survival was significantly higher in Period 2: 29% vs 8% (P<0.001), as confirmed by the multivariate analysis and propensity score. When combining stringent patient selection with an aggressive strategy, the survival rate increased to 38%. Pre-hospital ECPR implementation in itself was not an independent predictor of improved survival, but it was part of the strategy in Period 2.InterpretationOur data suggest that ECPR in specific settings in the management of refractory OHCA is feasible and can lead to a significant increase in neurological intact survivors. These data, however, need to be confirmed by a large RCT.Copyright © 2017 Elsevier B.V. All rights reserved.

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