B-type natriuretic peptide can predict the medium-term risk in patients with acute heart failure and preserved

Roberto Valle1, Nadia Aspromonte, Mauro Feola

  • 1Heart Failure Unit, Department of Cardiology, Ospedale Civile, San Donà di Piave, Italy.

Insights

Plasma B-type natriuretic peptide (BNP) levels effectively predict cardiovascular events in patients with heart failure and preserved ejection fraction. Higher BNP levels indicate a greater risk of death or hospital readmission within six months.

Area of Science:

  • Cardiology
  • Clinical Medicine
  • Biomarkers

Background:

  • Heart failure with preserved ejection fraction (HFpEF) affects half of all heart failure patients.
  • Neurohormonal activation is a key characteristic of HFpEF.
  • Plasma B-type natriuretic peptide (BNP) levels reflect left ventricular dysfunction severity.

Purpose of the Study:

  • To evaluate if plasma BNP levels can predict cardiovascular events in ambulatory HFpEF patients within six months.
  • To test the hypothesis that BNP measurement aids in risk stratification for HFpEF.

Main Methods:

  • 233 HFpEF patients (LVEF > 50%) were enrolled after acute HF stabilization.
  • Echocardiography assessed left ventricular systolic and diastolic function.
  • Plasma BNP levels were measured on admission; patients were followed for 6 months for combined cardiovascular death or HF readmission.

Main Results:

  • 48 composite endpoints (15 deaths, 33 readmissions) occurred among 233 patients.
  • Receiver operating curve analysis demonstrated BNP as a strong predictor (AUC = 0.84).
  • Multivariate Cox regression identified BNP cutoffs (200-500 pg/mL and ≥500 pg/mL) as significant predictors (HR=2.2, P<.04 and HR=5.8, P<.001, respectively).

Conclusions:

  • BNP levels are potent predictors of cardiovascular mortality and early readmission in patients with diastolic heart failure.
  • BNP measurements can guide follow-up intensity post-decompensation.
  • Elevated BNP levels correlate with a progressively worse prognosis in HFpEF.
Abstract

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