• Fabrice Dami, Eric Heymann, Mathieu Pasquier, Vincent Fuchs, Pierre-Nicolas Carron, and Olivier Hugli.
• Department of Emergency Medicine, University Hospital Center (CHUV), Lausanne, Switzerland; Emergency Medical Services, Dispatch Center, State of Vaud (Fondation Urgences-Santé), Lausanne, Switzerland. Electronic address: fabrice.dami@chuv.ch.
• Resuscitation. 2015 Dec 1; 97: 27-33.

IntroductionDispatch-assisted cardiopulmonary resuscitation (DA-CPR) plays a key role in out-of-hospital cardiac arrests. We sought to measure dispatchers' performances in a criteria-based system in recognizing cardiac arrest and delivering DA-CPR. Our secondary purpose was to identify the factors that hampered dispatchers' identification of cardiac arrests, the factors that prevented them from proposing DA-CPR, and the factors that prevented bystanders from performing CPR.Methods And ResultsWe reviewed dispatch recordings for 1254 out-of-hospital cardiac arrests occurring between January 1, 2011 and December 31, 2013. Dispatchers correctly identified cardiac arrests in 71% of the reviewed cases and 84% of the cases in which they were able to assess for patient consciousness and breathing. The median time to recognition of the arrest was 60s. The median time to start chest compression was 220s.ConclusionsThis study demonstrates that performances from a criteria-based dispatch system can be similar to those from a medical-priority dispatch system regarding out-of-hospital cardiac arrest (OHCA) time recognition and DA-CPR delivery. Agonal breathing recognition remains the weakest link in this sensitive task in both systems. It is of prime importance that all dispatch centers tend not only to implement DA-CPR but also to have tools to help them reach this objective, as today it should be mandatory to offer this service to the community. In order to improve benchmarking opportunities, we completed previously proposed performance standards as propositions.Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

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