• Nutrition · Mar 2021

    Observational Study

    Effects of malnutrition on long-term survival in adult patients after elective cardiac surgery.

    • Sergey M Efremov, Tatiana I Ionova, Tatiana P Nikitina, Pavel E Vedernikov, Timur A Dzhumatov, Timofey S Ovchinnikov, Abduvahhob A Rashidov, Christian Stoppe, Daren K Heyland, and Vladimir V Lomivorotov.
    • Department of Anesthesiology and Intensive Care, Saint Petersburg State University Hospital, St. Petersburg, Russian Federation. Electronic address: sergefremov@mail.ru.
    • Nutrition. 2021 Mar 1; 83: 111057.

    ObjectivesThe aim of this study was to investigate the relationship between malnutrition and long-term survival in patients who underwent cardiopulmonary bypass (CPB).MethodsThis study analyzed the long-term survival data of a mixed cohort of 1187 cardiac patients previously enrolled in a prospective observational study of nutritional screening in cardiac surgery. Nutritional status was assessed using the Malnutrition Universal Screening Tool (MUST). The mean age of patients was 58.86 ± 10.07 y (95% confidence interval [CI], 58.2-59.4). The median time of follow-up was 73.4 mo (25th-75th percentiles, 18.3-101.3).ResultsIn all, 449 patients (37.8%) were lost to follow-up after hospitalization. For the remaining participants, the overall 8-y survival was 68% (95% CI, 59-76) and 77% (95% CI, 73-80; log-rank, P = 0.12) in patients with and without malnutrition risk, respectively. Statistically significant differences in survival were found during the 3-y follow-up of patients with heart valve disease: 83% (95% CI, 74-92) with malnutrition versus 93% (95% CI, 90-96) without malnutrition (log-rank, P = 0.03). The final multivariate Cox regression model revealed logistic EuroSCORE (hazard ratio (HR), 1.337; 95% CI, 1.110-1.612), cardiopulmonary bypass time <110.5 min (HR 0.463, 95% CI 0.255-0.842), preoperative albumin (HR 0.799, 95% CI 0.691-0.924), and C-reactive protein (HR, 1.106; 95% CI, 1.018-1.202) as independent predictors of 3-y survival.ConclusionPreoperative malnutrition is not associated with 8-y mortality in a mixed cardiac surgery cohort. However, it may be associated with worse 3-y outcomes in patients with heart valve disease.Copyright © 2020 Elsevier Inc. All rights reserved.

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