The Nutritional Status of Patients with Heart Failure and Its Impact on Patient’ Outcomes—The Center’s Own Experience

<b>Background</b>. The nutritional status of patients in hospitals has a significant impact on the effectiveness of treatment, the occurrence of complications, and the length of hospitalization. <b>The purpose of this study</b> was to evaluate the nutritional status of patients with heart failure (HF) and its impact on patient outcomes. <b>Material and Methods</b>. This study included 213 patients (153 men, 71.8%) aged 74.7 ± 14.3 years treated for HF at the cardiology clinic of the 4th Military Clinical Hospital between 2018 and 2021. Sociodemographics, clinical data, the Model for End-Stage Liver Disease (MELD), CHILD-PUGH, and the Nutritional Risk Score (NRS) were analyzed. <b>Results</b>. Patients at high nutritional risk (NRS ≥ 3 score) were older (85 years vs. 75 years; <i>p</i> < 0.001), had longer hospitalizations (12 days vs. 9 days, <i>p</i> = 0.027), lower hemoglobin (10.5 g/dL vs. 11.7 g/dL, <i>p</i> = 0.001), lower TIBC (292 vs. 336; <i>p</i> = 0.012), and iron (32 mg/nL vs. 39 ng/mL, <i>p</i> = 0.009) compared with patients at low risk (NRS < 3 score). Patients hospitalized ≤7 days had significantly lower CHILD-PUGH score compared with patients hospitalized >7 days. Patients hospitalized ≥14 days were significantly more likely to die compared with other groups of HF patients (10.6% vs. 0.0%, <i>p</i> = 0.004). <b>Conclusions</b>. Abnormal nutritional status among hospitalized HF patients is associated with longer hospitalization duration and higher rates of death. In addition to clinical factors, the CHILD-PUGH scale can be helpful in estimating the length of hospitalization of HF patients. It is necessary to determine the impact of nutritional status on the outcome of patients with heart failure in further multicenter prospective or interventional studies.