Associação entre peptídeos natriuréticos e gravidade clínica em pacientes internados por insuficiência cardíaca descompensada

Abstract

This study aims to associate the values of natriuretic peptides (NP), BNP, and NT-proBNP, with the severity of clinical presentation in patients hospitalized with decompensated heart failure (HF). METHODS: This is a historical cohort study where data was collected from the medical records of patients admitted to a private hospital with decompensated heart failure between 2016 and 2023. RESULTS: The most common comorbidities included systemic arterial hypertension in 79 out of 96 patients (82.2%), previous HF in 46 (47.9%), dyslipidemia in 41 (42.7%), and diabetes mellitus in 38 (39.5%). The data revealed that patients who died of cardiac causes during hospitalization had higher NP values compared to those who did not experience the same outcome. Among these deaths, 57.14% of patients exhibited hemodynamic instability on hospital admission (p=0.017). Additionally, two patients were readmitted within 6 months of discharge due to a new episode of decompensated HF, both presenting hemodynamic instability on admission (p=0.03), and eventually progressed to cardiac death. Cardiac and non-cardiac deaths were associated with higher NT-proBNP values (p=0.043). CONCLUSION: The findings indicate that higher NP levels in patients hospitalized with decompensated HF correlate with greater initial severity and long-term, including an increased likelihood of hemodynamic instability and a higher risk of readmission, respectively. Elevated NT-proBNP values are also linked to a higher mortality rate.