The prognostic impact of the controlling nutritional status (CONUT) score in patients undergoing cardiovascular surgery

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ORIGINAL ARTICLE

The prognostic impact of the controlling nutritional status (CONUT) score in patients undergoing cardiovascular surgery Masanori Hara1 · Takeshiro Fujii1 · Hiroshi Masuhara1 · Muneyasu Kawasaki2 · Keiichi Tokuhiro2 · Yoshinori Watanabe1 Received: 8 December 2019 / Accepted: 21 March 2020 © The Japanese Association for Thoracic Surgery 2020

Abstract Background  Various postoperative predictive markers following cardiovascular surgery have been examined for use in the current aging population. The controlling nutritional status (CONUT) score, which is advocated not only as a screening tool for poor nutritional status, but also as an immunonutritional assessment, has started to attract attention in several clinical settings, such as in cancer and heart failure patients. The aim of this study was to evaluate the value of the CONUT score as a postoperative prognostic marker in patients who underwent cardiovascular surgery. Methods  A total of 75 patients who underwent elective cardiovascular surgery between January 2015 and October 2017 were retrospectively analyzed. The patients were divided into two groups according to their preoperative CONUT score (i.e., CONUT