Association between brachial-ankle pulse wave velocity and endothelium-dependent and -independent coronary vasomotor

Tomohide Yoshino1, Ichiro Nakae, Tetsuya Matsumoto

  • 1Departments of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Seta, Otsu, Japan.

Insights

Increased brachial-ankle pulse wave velocity (baPWV) is linked to impaired coronary blood vessel function. This non-invasive measure may help assess cardiovascular risk, especially in diabetic individuals.

Area of Science:

  • Cardiovascular Medicine
  • Vascular Physiology
  • Diagnostic Imaging

Background:

  • Coronary endothelial function and brachial-ankle pulse wave velocity (baPWV) are established predictors of cardiovascular events.
  • Understanding the interplay between vascular stiffness (baPWV) and coronary vasodilatory capacity is crucial for risk stratification.

Purpose of the Study:

  • To investigate the relationship between baPWV and both endothelium-dependent and -independent coronary vasodilatory functions.
  • To assess the clinical utility of baPWV in evaluating coronary vascular health.

Main Methods:

  • Sixty-five patients without significant coronary stenosis underwent baPWV measurement.
  • Coronary blood flow (CBF) and epicardial coronary artery diameter changes were assessed after intracoronary administration of bradykinin (endothelium-dependent), nitroglycerin, and papaverine (endothelium-independent).

Main Results:

  • A significant inverse correlation was observed between baPWV and coronary artery diameter/CBF responses to bradykinin, nitroglycerin, and papaverine.
  • Multivariate analysis identified diabetes as an independent predictor associated with higher baPWV and impaired coronary vasodilation.

Conclusions:

  • Elevated baPWV is associated with both endothelial-dependent and -independent coronary vasodilatory dysfunction.
  • baPWV serves as a valuable, non-invasive tool for assessing coronary risk factors, particularly in diabetic patients.

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