• Xuetao Jiang, Jie Xiang, Ming Yang, Wenjun Liu, Guoyun Lin, Fang Chen, Wei Wang, Guangyou Duan, Sheng Jing, and Xiaohang Bao.
• Department of Anesthesiology, Second Affiliated Hospital of Army Military Medical University, Chongqing, China.
• J. Cardiothorac. Vasc. Anesth. 2024 May 1; 38 (5): 116911801169-1180.

ObjectivesThe authors sought to elucidate the role and predictive effects of preoperative nutritional status on postoperative outcomes across different age groups undergoing heart valve surgery.DesignA retrospective study with intergroup comparison, receiver operating characteristic curve analysis, and logistic regression analysis.SettingA hospital affiliated with a medical university.ParticipantsThree thousand nine hundred five patients undergoing heart valve surgery between October 2016 and December 2020.InterventionsNone.Measurements And Main ResultsPatients were categorized into 3 age subgroups: young (aged 18-44 years), middle-aged (aged 45-59 years), and older (aged ≥60 years) adults. The Nutritional Risk Index (NRI), Prognostic Nutritional Index, and Controlling Nutritional Status scores were evaluated. Young adults with an NRI <99 experienced a significantly higher rate of prolonged intensive care unit stay (28.3% v 4.1%, p < 0.001), with a relative risk of 4.58 (95% CI: 2.04-10.27). Similarly, young adults with an NRI <97 had a significantly increased occurrence of mortality within 30 days after surgery (6.3% v 0.2%, p < 0.001), with a relative risk of 41.11 (95% CI: 3.19-529.48).ConclusionsIn patients who undergo heart valve surgery, early postoperative outcomes can be influenced by nutritional status before the surgery. In the young-adult group, NRI <99 and NRI <97 effectively could predict prolonged intensive care unit stay and 30-day mortality, respectively.Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.

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