Abstract: Objective To investigate the correlation between controlling nutritional status score(CONUT) and heart failure(HF)in the elderly patients with coronary artery disease(CAD). Methods A total of 202 patients who underwent coronary angiography(CAG) in the Second Affiliated Hospital of Anhui Medical University from January 2016 to January 2022 were enrolled, and they were divided into HF group(n=63) and non-HF(NHF) group(n=139). Multivariate Logistic regression was used to analyze the risk factors for HF in the elderly CAD patients . The predictive value of the related index was analyzed by receiver operating characteristic(ROC) curve. Results The age, proportion of advanced age, level of uric acid(UA), the socres of Gensini and CONUT were significantly higher and the levels of serum albumin and triglyceride(TG) were significantly lower in HF group than those in NHF group(P<0.05). Multivariate Logistic regression analysis showed that UA, Gensini score and CONUT score were the risk factors for HF in the elderly patients with CAD. The areas under the ROC curve(AUC) of CONUT score, UA, Gensini score and the combination of three indicators in predicting HF in the elderly patients with CAD were 0.587,0.685,0.614 and 0.729 respectively. Conclusions CONUT score is high in the elderly CAD patients with HF, and it has certain predictive value for the incidence of HF in the elderly patients with CAD.

Key words: coronary heart disease, heart failure, control nutritional status score, Gensini score