• Toni Pätz, Katharina Stelzig, Rüdiger Pfeifer, Undine Pittl, Holger Thiele, Hans-Jörg Busch, Iris Reinhard, and Sebastian Wolfrum.
• University Heart Center Lübeck, Medical Clinic II, Department of Cardiology, Angiology and Intensive Care Medicine, Lübeck, Germany.
• Acta Anaesthesiol Scand. 2019 Sep 1; 63 (8): 1079-1088.

BackgroundThe registry of the German Society of Intensive Care and Emergency Medicine was founded to analyze outcome of modern post-resuscitation care.MethodsA total of 902 patients were analyzed in this retrospective, multicenter, and population-based observational trial on individuals suffering from out-of-hospital cardiac arrest. All patients had return of spontaneous circulation (ROSC) and received TTM after admitted to an intensive care unit. Outcome was focused on age and analyzed by creating 4 subgroups (<65, 65-74, 75-84, ≥85 years). Twenty-eight day and 180-day survival and a favorable neurological outcome according to the Cerebral Performance Category scale were evaluated as clinical endpoints.ResultsAt 28-day and 180-day follow-up, 44.8% and 53.4% of all patients had died, respectively. The evaluation of survival rate by age category revealed a higher mortality, but not an unfavorable neurological prognosis with increasing age. In multiple stepwise regressions, age, time to ROSC, bystander resuscitation, and cardiac cause of cardiac arrest were associated with increased chance of 180-day survival and, in addition, bystander resuscitation, time of hypoxia, and a defibrillation performed by emergency medical service were associated with a favorable neurological outcome at 180-day follow-up.ConclusionIncreasing age was associated with a higher mortality, but not with an unfavorable neurological outcome. The majority of survivors had a favorable neurologic outcome 6 months after cardiac arrest.© 2019 The Acta Anaesthesiologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.

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