研究目的:
HF is an advanced or terminal stage of various heart diseases, with high rehospitalization and mortality rates. In HF patients, undernutrition is not uncommon and represents one of the most significant determinants of poor clinical outcomes. Therefore, nutritional management is of paramount importance for patients with HF.The basic method of nutritional management is to effectively identify the nutritional status of patients with heart failure, especially in elderly patients with heart failure who are not easy to find in the early stage. Limited data are available regarding the association between CONUT score and prognosis in elder patients with HFpEF, despite its easy availability in routine blood chemistry. Therefore, we aimed to evaluate the prognostic significance of CONUT score and to compare it with other well-established nutritional indices in HFpEF, a common HF phenotype in the elderly population with coronary artery disease.