• Eujene Jung, Jeong Ho Park, Young Sun Ro, Kyoung Jun Song, Hyun Ho Ryu, Seung Chul Lee, and Sang Do Shin.
• Department of Emergency Medicine, Chonnam National University Hospital, Gwang-ju, Republic of Korea.
• Am J Emerg Med. 2019 Apr 1; 37 (4): 608-614.

ObjectiveThere are few studies on the effects hypertension has on survival outcomes in out-of-hospital-cardiac arrest (OHCA) patients, although hypertension is a major risk factor for the incidence of cardiac arrest. This study aims to investigate whether hypertension is associated with survival outcomes in cardiac arrest patients across age groups.MethodsThis study was conducted using the national cardiac arrest registry of OHCA patients who survived to hospital admission from 2012 to 2016. The clinical histories of hypertension were obtained from patients' medical records. The endpoint was cerebral performance category (CPC) 1 and 2 (good CPC) and survival to discharge. Multivariable logistic regression analysis was performed on the data collected. The final model with an interaction term was evaluated to compare the effects of hypertension across age groups.ResultsA total 11,610 patients (61.0% hypertensive patients and 39.0% non-hypertensive patients) were included. The group over 80 years old with hypertension were more likely to have good neurologic recovery (AOR 2.53 [1.43-4.50]) and those under 65 years old with hypertension were more likely to survive to hospital discharge with statistical significance (AOR 1.19 [1.04-1.35]).ConclusionsHypertension does not imply poor survival outcomes independently for all ages, as those over 80 years of age can have rather good neurological outcomes.Copyright © 2018 Elsevier Inc. All rights reserved.

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