Proposed NT-ProBNP Threshold for Predicting 2-Year Heart Failure Mortality and Implications for Long-Term Community...

Area of Science:

• Cardiology
• Biomarkers
• Prognostics

Background:

• Heart failure (HF) hospitalization necessitates accurate long-term mortality risk assessment.
• N-terminal pro-B-type natriuretic peptide (NT-proBNP) is a potential biomarker for HF prognosis.

Purpose of the Study:

• To establish a predictive cut-off for pre-discharge NT-proBNP concentrations for two-year all-cause mortality in symptomatic HF patients.
• To identify risk factors associated with elevated NT-proBNP levels above the established cut-off.

Main Methods:

• Prospective study of 96 patients with symptomatic HF and LVEF < 50%.
• Follow-up for up to 2 years post-hospital discharge.
• Analysis of pre-discharge NT-proBNP levels and associated clinical factors.

Main Results:

• Pre-discharge NT-proBNP levels significantly predicted all-cause mortality.
• An NT-proBNP cut-off of 8700 pg/mL predicted a 4.6-fold increase in mortality risk (sensitivity 75.8%, specificity 70.1%).
• Predictors of NT-proBNP > 8700 pg/mL included older age, lack of ACE-I treatment, low admission SBP (<120 mmHg), and low admission hemoglobin.

Conclusions:

• NT-proBNP is a valuable tool for predicting mortality post-HF decompensation.
• Implementation of targeted long-term monitoring and treatment strategies is supported by these findings.
• Specific patient groups (older, no ACE-I, low SBP/hemoglobin) require heightened attention for elevated NT-proBNP levels.