• Sun Woo Nam, In-Ae Song, and Tak Kyu Oh.
• Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea.
• J. Cardiothorac. Vasc. Anesth. 2023 Sep 1; 37 (9): 165116581651-1658.

ObjectivesWe aimed to investigate mortality and its associated factors in cardiovascular surgery-associated intensive care unit (ICU) admissions in South Korea from 2010 to 2019.DesignPopulation-based cohort study.SettingData from the National Health Insurance Service database in South Korea were used in this study.ParticipantsAll adult patients admitted to the ICU associated with cardiovascular surgery in South Korea between January 1, 2010 and December 31, 2019 were analyzed.InterventionsNone.Measurements And Main ResultsA total of 62,794 ICU admissions associated with cardiovascular surgery were included in the analysis (median value of age: 65 years; 58.0% men). This included patients who underwent coronary artery bypass grafting (CABG) only (n = 10,704), valve-only surgery (n = 35,812), CABG + valve surgery (n = 3,230), aortic procedures (n = 7,968), and others (n = 5,080). The number of cardiovascular surgeries associated with ICU admissions was 4,409 in 2010, which gradually increased to 10,366 in 2019. The aortic procedure group had the highest 1-year mortality rate after cardiovascular surgery (15.7%), followed by the CABG + valve (13.2%), others (11.5%), CABG-only (9.5%), and valve-only (8.7%) groups. Invasive life support procedures during the ICU stay and hospital admission through the emergency room were potential risk factors for 1-year mortality after cardiovascular surgery.ConclusionsCardiovascular surgery-associated intensive care admissions gradually increased from 2010 to 2019 in South Korea. Among these patients, the highest 1-year mortality rate was observed in the aortic procedures group, followed by the CABG + valve, others, CABG-only, and valve-only groups.Copyright © 2023 Elsevier Inc. All rights reserved.

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