Capacidad predictiva del sodio sérico plasmático como marcador de mortalidad en pacientes con insuficiencia cardíaca con fracción de eyección reducida del Hospital General Monte Sinaí en el periodo 2022 – 2023.

Abstract

Introduction: Heart failure (HF) is a clinical syndrome characterized by symptoms such as dyspnea or exertional limitation, caused by alterations in ventricular filling, blood ejection, or both. Among the electrolyte disturbances observed in these conditions is hyponatremia. This raises the question: What is the predictive capacity of serum plasma sodium as a marker of mortality in patients with heart failure with reduced ejection fraction? Methodology: The research is based on a predictive design, with information acquired retrospectively, longitudinally, and analytically. Results: Using a serum sodium threshold value of 137.4 mEq/L, a positive predictive value of 72%, a negative predictive value of 70%, and an AUC of 0.72 were obtained. Conclusion: Serum sodium has an acceptable discriminatory capacity for predicting one-year mortality in patients with heart failure with reduced ejection fraction.