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Related Experiment Videos

Aortic valve sclerosis is associated with systemic endothelial dysfunction.

Elisa Poggianti1, Lucia Venneri, Vlad Chubuchny

  • 1Echocardiography Laboratory, Institute of Clinical Physiology, CNR, Pisa, Italy.

Journal of the American College of Cardiology
|February 7, 2003
PubMed
Summary

Aortic valve sclerosis (AVS) is linked to systemic endothelial dysfunction, a key indicator of atherosclerosis. Lower flow-mediated dilation (FMD) significantly predicts AVS, suggesting a connection to cardiovascular events.

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Area of Science:

  • Cardiology
  • Vascular Biology
  • Atherosclerosis Research

Background:

  • Aortic valve sclerosis (AVS) is increasingly recognized as a manifestation of the broader atherosclerotic process.
  • Systemic endothelial dysfunction, an early marker of atherosclerosis, can be non-invasively assessed using brachial artery ultrasonography.

Purpose of the Study:

  • To investigate the association between aortic valve sclerosis (AVS) and systemic endothelial dysfunction.
  • To explore whether endothelial function is a predictor of AVS.

Main Methods:

  • 102 in-hospital patients underwent transthoracic echocardiography for AVS assessment, stress echocardiography, coronary angiography (Duke score), and endothelial function testing (flow-mediated dilation, FMD).
  • AVS was defined by thickened valve leaflets and transaortic flow velocity <2.5 m/s.

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Main Results:

  • Aortic valve sclerosis (AVS) was present in 35 patients and absent in 67.
  • Patients with AVS exhibited significantly lower flow-mediated dilation (FMD) compared to those without AVS (2.2% vs. 5.3%, p < 0.01).
  • Multivariate analysis identified FMD as a strong predictor of AVS (OR 1.18 per 1% decrease in FMD, p=0.01), independent of coronary artery disease severity.

Conclusions:

  • Aortic valve sclerosis (AVS) is significantly associated with systemic endothelial dysfunction.
  • This finding suggests a potential mechanistic link between AVS, endothelial dysfunction, and an increased risk of cardiovascular events.