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Systemic endothelial function is preserved in men with both active and inactive variant angina pectoris

K Ito1, H Akita, K Kanazawa

  • 1The First Department of Internal Medicine, Kobe University School of Medicine, Japan.

The American Journal of Cardiology
|December 30, 1999
PubMed

Insights

Coronary artery spasm, a heart condition, does not appear linked to systemic endothelial dysfunction. This study found preserved blood vessel function in patients with variant angina pectoris, suggesting no widespread endothelial issues.

Area of Science:

  • Cardiology
  • Vascular Biology
  • Endothelial Function

Background:

  • Coronary artery spasm is a potential manifestation of systemic endothelial dysfunction.
  • The relationship between coronary spasm activity and systemic endothelial function requires further investigation.

Purpose of the Study:

  • To investigate if coronary artery spasm is a coronary manifestation of systemic endothelial dysfunction.
  • To determine if coronary spasm activity influences systemic endothelial function.

Main Methods:

  • Examined brachial flow-mediated, endothelium-dependent vasodilation.
  • Assessed nitroglycerin-induced endothelium-independent vasodilation using high-resolution ultrasound.
  • Studied 11 men with variant angina pectoris (6 active, 5 inactive) without coronary atherosclerosis.

Main Results:

  • Endothelium-dependent vasodilation in peripheral circulation was preserved in both active and inactive variant angina pectoris groups.
  • No significant difference in endothelial function was observed between patients with active and inactive coronary spasm.

Conclusions:

  • Systemic endothelial dysfunction is not implicated in the pathogenesis of coronary artery spasm.
  • Coronary artery spasm activity does not appear to influence systemic endothelial function.

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