Bedside NT-proBNP Monitoring in Acute Heart Failure

The goal of this observational study is to investigate the association between dynamic changes in NT-proBNP levels and clinical decongestion status in patients with acute decompensated heart failure (ADHF) receiving guideline-directed standard medical treatment. The main question it aims to answer is: Among patients with acute decompensated heart failure treated according to current clinical guidelines, are changes in NT-proBNP levels during hospitalization associated with successful clinical decongestion? Participants will receive standard-of-care treatment for ADHF according to treating physicians' clinical decisions and current guideline recommendations. During hospitalization, serial NT-proBNP measurements and repeated assessments of congestion status will be performed to evaluate the relationship between NT-proBNP dynamics and the process of decongestion. This study is purely observational and will not assign treatments or modify clinical management. The findings may improve understanding of the role of NT-proBNP dynamics as a marker of treatment response and provide preliminary evidence for future studies on individualized management of acute heart failure.