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Incremental prognostic significance of peripheral endothelial dysfunction in patients with heart failure with normal

Eiichi Akiyama1, Seigo Sugiyama, Yasushi Matsuzawa

  • 1Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.

Journal of the American College of Cardiology
|October 9, 2012
PubMed

Insights

Peripheral endothelial dysfunction, measured by reactive hyperemia-peripheral arterial tonometry index (RHI), independently predicts cardiovascular events in heart failure with preserved ejection fraction (HFNEF) patients, improving risk stratification.

Area of Science:

  • Cardiology
  • Vascular Medicine
  • Heart Failure Research

Background:

  • Endothelial dysfunction is implicated in heart failure (HF).
  • The prognostic value of peripheral endothelial dysfunction in HF with preserved ejection fraction (HFNEF) is not well-established.
  • This study investigates the predictive role of peripheral endothelial function in HFNEF patients.

Purpose of the Study:

  • To determine if peripheral endothelial dysfunction predicts cardiovascular events in HFNEF patients.
  • To assess the incremental value of endothelial function assessment for risk stratification in HFNEF.

Main Methods:

  • A prospective cohort study included 321 HFNEF patients.
  • Peripheral endothelial function was assessed noninvasively using reactive hyperemia-peripheral arterial tonometry (RH-PAT) to calculate the RH-PAT index (RHI).
  • Cardiac function (E/e') and cardiovascular events were monitored.

Main Results:

  • Low RHI was associated with a significantly higher probability of cardiovascular events.
  • RHI, E/e', and B-type natriuretic peptide (BNP) were identified as independent predictors of cardiovascular events.
  • Adding RHI to established prognostic factors significantly improved cardiovascular event prediction (C-statistic increased from 0.671 to 0.712).

Conclusions:

  • Peripheral endothelial dysfunction is an independent predictor of future cardiovascular events in HFNEF.
  • Assessing endothelial function using RHI enhances clinical risk stratification for HFNEF patients.
  • RH-PAT provides valuable prognostic information for HFNEF management.
Abstract

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