SYSTEMATIC REVIEW article
Front. Cardiovasc. Med.
Sec. Heart Failure and Transplantation
Volume 12 - 2025 | doi: 10.3389/fcvm.2025.1665713
This article is part of the Research TopicNew Insights into the Pathogenesis, Diagnosis and Therapy of Chronic Heart Failure in Nonischemic CardiomyopathiesView all 5 articles
Association between Controlling Nutritional Status score and the prognosis of patients with heart failure: a systematic review and meta-analysis
Provisionally accepted
- The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China
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Background: Malnutrition frequently complicates heart failure (HF), interacting with systemic inflammation, metabolic dysregulation, and immune dysfunction to accelerate disease progression. The Controlling Nutritional Status (CONUT) score, derived from objective laboratory parameters (serum albumin, total cholesterol, lymphocyte count), quantifies nutritional derangements and has emerged as a promising tool for HF risk stratification and prognostic prediction. However, accumulating evidence requires systematic synthesis to establish its clinical validity. Methods: A comprehensive literature search was conducted in databases including PubMed, Embase, the Cochrane Library and Web of Science, covering all available records up to January 27, 2025, to identify research examining the association between the CONUT score and HF outcomes. Results: The analysis included 28 cohort studies. Pooled data demonstrated a significant correlation between elevated CONUT scores and higher rates of all-cause mortality (HR = 1.57, 95% CI 1.35– 1.83; P < 0.00001). Despite substantial heterogeneity, sequential exclusion sensitivity analyses confirmed the robustness of this association, with recalculated estimates consistently showing overlapping confidence intervals across all analytical scenarios. Conclusion: Based on the definition of the CONUT score, malnutrition remains a significant factor associated with overall mortality risk in individuals diagnosed with heart failure, even after controlling for potential confounders. Utilizing the CONUT score for nutritional assessment enables clinicians to detect patients who are more likely to experience unfavorable clinical outcomes. Systematic review registration: PROSPERO, identifier CRD420251023217
Keywords: CONUT1, Heart Failure2, prognosis3, malnutrition4, all-cause mortality5
Received: 14 Jul 2025; Accepted: 30 Sep 2025.
Copyright: © 2025 Yuan, Wang, Yi, Yang, Zhong and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Haoyu Wang, 361536712@qq.com
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