The predictive role of circulating microparticles in patients with chronic heart failure

Alexander E Berezin1, Alexander A Kremzer2, Yulia V Martovitskaya3

  • 1Internal Medicine Department, State Medical University, 26, Mayakovsky Av., Zaporozhye UA-69035, Ukraine.

BBA Clinical
|December 18, 2015
PubMed

Insights

Circulating microparticles with an apoptotic phenotype may help predict cardiovascular events in patients with chronic heart failure (CHF). These markers, alongside NT-pro-BNP and hs-CRP, improve risk assessment for fatal and non-fatal outcomes.

Area of Science:

  • Cardiology
  • Biomarkers
  • Heart Failure Research

Background:

  • Chronic heart failure (CHF) poses a significant risk for cardiovascular events.
  • Accurate risk assessment is crucial for managing CHF patients.
  • Identifying novel biomarkers for cardiovascular event prediction in CHF is an ongoing research area.

Purpose of the Study:

  • To evaluate the utility of circulating microparticles with apoptotic and non-apoptotic phenotypes in assessing the 3-year risk of fatal and non-fatal cardiovascular events in CHF patients.
  • To determine if these microparticles improve upon existing risk prediction models.

Main Methods:

  • Prospective cohort study of 388 CHF patients over 3 years.
  • Measurement of NT-pro brain natriuretic peptide (NT-pro-BNP), high-sensitivity C-reactive protein (hs-CRP), and endothelial apoptotic microparticles (EMPs) at baseline.
  • Analysis of cardiovascular events, including fatal outcomes, hospitalizations, and cumulative endpoints using logistic regression.

Main Results:

  • Elevated levels of specific EMPs (CD144+/CD31+/annexin V+ and CD31+/annexin V+) were significantly associated with cumulative cardiovascular endpoints in multivariate analysis.
  • These EMPs, when added to the standard ABC model, improved the relative integrated discrimination index (IDI) by 11.4% and 10.5%, respectively.
  • Factors like NYHA class, reduced left ventricular ejection fraction (LVEF), NT-pro-BNP, and hs-CRP were also significant predictors.

Conclusions:

  • The apoptotic phenotype of circulating microparticles is associated with 3-year combined clinical outcomes in CHF patients.
  • Apoptotic EMPs show potential as valuable biomarkers for cardiovascular risk stratification in CHF.
  • These findings suggest that EMPs can enhance existing risk assessment models for CHF patients.
Abstract

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