Tetsuhisa Kitamura1, Sachiko Morita2, Kosuke Kiyohara3, Chika Nishiyama4, Kentaro Kajino5, Tomohiko Sakai5, Tatsuya Nishiuchi6, Yasuyuki Hayashi2, Takeshi Shimazu5, Taku Iwami7. 1. Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, 2-2 Ymamada-oka, Suita 565-0871, Osaka, Japan. Electronic address: lucky_unatan@yahoo.co.jp. 2. Senri Critical Care Medical Center, Osaka Saiseikai Senri Hospital, 1-1-6 Tsukumodai, Suita 565-0862, Osaka, Japan. 3. Division Department of Public Health, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan. 4. Department of Critical Care Nursing, Graduate School of Medicine and School of Health Sciences, Kyoto University, 53 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan. 5. Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamada-oka, Suita 565-0871, Osaka, Japan. 6. Department of Acute Medicine, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi Osaka-Sayama, Osaka 589-8511, Japan. 7. Kyoto University Health Services, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.
Abstract
BACKGROUND: Little is known about the improvement in out-of-hospital cardiac arrest (OHCA) survival among elderly patients. The aim of this study was to evaluate the trends in the survival after bystander-witnessed OHCA of cardiac origin in this age group. METHODS: This prospective, population-based, observation of the whole population of Osaka, Japan included consecutive OHCA patients aged ≥65 years with emergency responder resuscitation attempts from January 1999 to December 2011. The primary outcome measure was one-month survival with neurologically favorable outcome, and the trends in the outcome from OHCA were evaluated by location. Multiple logistic regression analysis was used to assess factors that were potentially associated with neurologically favorable outcome. RESULTS: During the study period, a total of 10,876 bystander-witnessed OHCA of cardiac origin were eligible for our analyses. In whole arrests, the proportion of one-month survival with neurologically favorable outcome improved from 1.4% in 1999 to 4.8% in 2011 (P for trend <0.001). The proportion of neurologically favorable outcome in homes and public places improved from 0.7% in 1999 to 3.2% in 2011 (P for trend <0.001) and from 4.2% in 1999 to 20.9% in 2011 (P for trend <0.001), respectively, whereas, in nursing homes, the proportion of neurologically favorable outcome did not improve. In a multivariate analysis, bystander-initiated cardiopulmonary resuscitation and emergency response time were significant predictors for neurologically favorable outcome. CONCLUSIONS: In this population, survival from OHCA among elderly patients significantly improved during the study period, but the trends differed by the OHCA location.
BACKGROUND: Little is known about the improvement in out-of-hospital cardiac arrest (OHCA) survival among elderly patients. The aim of this study was to evaluate the trends in the survival after bystander-witnessed OHCA of cardiac origin in this age group. METHODS: This prospective, population-based, observation of the whole population of Osaka, Japan included consecutive OHCA patients aged ≥65 years with emergency responder resuscitation attempts from January 1999 to December 2011. The primary outcome measure was one-month survival with neurologically favorable outcome, and the trends in the outcome from OHCA were evaluated by location. Multiple logistic regression analysis was used to assess factors that were potentially associated with neurologically favorable outcome. RESULTS: During the study period, a total of 10,876 bystander-witnessed OHCA of cardiac origin were eligible for our analyses. In whole arrests, the proportion of one-month survival with neurologically favorable outcome improved from 1.4% in 1999 to 4.8% in 2011 (P for trend <0.001). The proportion of neurologically favorable outcome in homes and public places improved from 0.7% in 1999 to 3.2% in 2011 (P for trend <0.001) and from 4.2% in 1999 to 20.9% in 2011 (P for trend <0.001), respectively, whereas, in nursing homes, the proportion of neurologically favorable outcome did not improve. In a multivariate analysis, bystander-initiated cardiopulmonary resuscitation and emergency response time were significant predictors for neurologically favorable outcome. CONCLUSIONS: In this population, survival from OHCA among elderly patients significantly improved during the study period, but the trends differed by the OHCA location.
Authors: Christopher B Fordyce; Carolina M Hansen; Kristian Kragholm; Matthew E Dupre; James G Jollis; Mayme L Roettig; Lance B Becker; Steen M Hansen; Tomoya T Hinohara; Claire C Corbett; Lisa Monk; R Darrell Nelson; David A Pearson; Clark Tyson; Sean van Diepen; Monique L Anderson; Bryan McNally; Christopher B Granger Journal: JAMA Cardiol Date: 2017-11-01 Impact factor: 14.676
Authors: Jordi Sans Roselló; Maria Vidal-Burdeus; Pablo Loma-Osorio; Alexandra Pons Riverola; Gil Bonet Pineda; Nabil El Ouaddi; Jaime Aboal; Albert Ariza Solé; Claudia Scardino; Cosme García-García; Estefanía Fernández-Peregrina; Alessandro Sionis Journal: Int J Cardiol Heart Vasc Date: 2022-04-27