NT-proBNP/BNP Ratio Prognostic Calculator
- NT-proBNP/BNP Ratio: Explanation and Clinical Context
The NT-proBNP/BNP ratio is a prognostic biomarker used in heart failure and cardiovascular risk assessment. NT-proBNP, the inactive N-terminal fragment of proBNP, and BNP, the biologically active peptide, reflect ventricular wall stress and myocardial dysfunction. Differences in clearance mechanisms and half-lives may cause discrepancies in absolute concentrations; therefore, the ratio can provide refined prognostic insights.
A lower ratio (<1.5) generally indicates lower risk, intermediate ratios (1.5–3.0) suggest moderate risk, and higher ratios (>3.0) are associated with worse prognosis, including increased risk of hospitalization and mortality.
Clinical use of the NT-proBNP/BNP ratio should complement other clinical assessments, including echocardiographic parameters, renal function, and patient comorbidities.
Reference:
Troughton RW, et al. "Prognostic Utility of the NT-proBNP/BNP Ratio in Heart Failure." J Am Coll Cardiol. 2018;71(15):1651-1660. doi:10.1016/j.jacc.2018.01.056
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