• Daisuke Hasegawa, Aniket Sharma, Siddharth Dugar, Young Im Lee, and Ryota Sato.
• Department of Internal Medicine, Mount Sinai Beth Israel, NY, USA.
• J Crit Care. 2023 Dec 1; 78: 154404154404.

IntroductionThe impact of preceding sepsis on in-hospital cardiac arrest (IHCA)-related mortality has not been established. This study aimed to determine the association between IHCA-related mortality and sepsis.MethodsThis retrospective study used the National Inpatient Sample data from 01/2017 to 12/2019. The study included adults (≥18 years) who suffered from IHCA. The study classified cardiac arrest rhythms as ventricular tachycardia/ventricular fibrillation or pulseless electronic activity/asystole. We compared the IHCA-related in-hospital mortality between sepsis and non-sepsis groups in all patients and subgroups divided by cardiac arrest rhythm and age. Multivariable logistic regression analysis was performed to assess the independent association between sepsis and in-hospital mortality.ResultsA total of 357,850 hospitalizations who suffered from IHCA were identified, with sepsis present in 17.6% of patients. IHCA-related in-hospital mortality was 84.8% in sepsis and 68.4% in non-sepsis-related hospitalizations (p < 0.001). IHCA-related in-hospital mortality was higher in sepsis than in non-sepsis groups, regardless of age or cardiac arrest rhythms. In multivariable logistic regression analysis, sepsis was significantly associated with higher mortality with an odds ratio of 2.27 (95% confidence interval: 2.07-2.50, p < 0.001).ConclusionSepsis was associated with higher in-hospital cardiac arrest mortality compared to non-sepsis cases, regardless of age and cardiac rhythm.Copyright © 2023 Elsevier Inc. All rights reserved.

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