Nicolas Segal1, Christophe di Pompéo2, Joséphine Escutnaire2, Eric Wiel3, Cyrielle Dumont2, Laurent Castra2, Karim Tazarourte4, Carlos El Khoury5, Pierre-Yves Gueugniaud4, Hervé Hubert2. 1. Assistance Publique des Hôpitaux de Paris, Lariboisière Hospital, Paris, France. 2. Public Health Department EA 2694, University of Lille, Lille University Hospital, 6, Lille Cedex, France. 3. Public Health Department EA 2694, University of Lille, Lille University Hospital, 6, Lille Cedex, France; SAMU 59 and Emergency Department, Centre Hospitalier Régional Universitaire de Lille, Lille, France. 4. SAMU 69, Lyon University Hospital, University of Claude Bernard-Lyon 1, Edouard Herriot Hospital, Lyon, France. 5. Réseau Cardiologie Médecine d'Urgence Network, Hussel Hospital, Vienne, France.
Abstract
BACKGROUND: Even if age is not considered the key prognostic factor for survival in cardiac arrest (CA), some studies question whether cardiopulmonary resuscitation (CPR) in the elderly could be futile. OBJECTIVE: The aim of this study was to describe differences in out-of-hospital CA survival rates according to age stratification based on the French National CA registry (RéAC). The second objective was to analyze the differences in resuscitation interventions according to age. METHODS: We performed a retrospective cohort study based on data extracted from the RéAC. All 18,249 elderly patients (>65 years old) with non-traumatic CA recorded between July 2011 and March 2015 were included. Patients' ages were stratified into 5-year increments. RESULTS: Cardiopulmonary resuscitation (CPR) was started significantly more often in younger patients (p = 0.019). Ventilation and automated external defibrillation by bystanders were started without any difference between age subgroups (p = 0.147 and p = 0.123, respectively). No difference in terms of rate of external chest compressions or ventilation initiation was found between the subgroups (p = 0.357 and p = 0.131, respectively). Advanced cardiac life support was started significantly more often in younger patients (p = 0.023). Total CPR duration, return of spontaneous circulation, and survival at hospital admission and at 30 days or hospital discharge decreased significantly with age (p < 10-3). The survival decrease was linear, with a loss of 3% survival chances each 5-year interval. CONCLUSIONS: This study found that survival in older persons decreased linearly by 3% every 5 years. However, this diminished rate of survival could be the consequence of a shorter duration and less advanced life support.
BACKGROUND: Even if age is not considered the key prognostic factor for survival in cardiac arrest (CA), some studies question whether cardiopulmonary resuscitation (CPR) in the elderly could be futile. OBJECTIVE: The aim of this study was to describe differences in out-of-hospital CA survival rates according to age stratification based on the French National CA registry (RéAC). The second objective was to analyze the differences in resuscitation interventions according to age. METHODS: We performed a retrospective cohort study based on data extracted from the RéAC. All 18,249 elderly patients (>65 years old) with non-traumatic CA recorded between July 2011 and March 2015 were included. Patients' ages were stratified into 5-year increments. RESULTS: Cardiopulmonary resuscitation (CPR) was started significantly more often in younger patients (p = 0.019). Ventilation and automated external defibrillation by bystanders were started without any difference between age subgroups (p = 0.147 and p = 0.123, respectively). No difference in terms of rate of external chest compressions or ventilation initiation was found between the subgroups (p = 0.357 and p = 0.131, respectively). Advanced cardiac life support was started significantly more often in younger patients (p = 0.023). Total CPR duration, return of spontaneous circulation, and survival at hospital admission and at 30 days or hospital discharge decreased significantly with age (p < 10-3). The survival decrease was linear, with a loss of 3% survival chances each 5-year interval. CONCLUSIONS: This study found that survival in older persons decreased linearly by 3% every 5 years. However, this diminished rate of survival could be the consequence of a shorter duration and less advanced life support.
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