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Erectile dysfunction as a generalized vascular dysfunction.

Nevzat Uslu1, Sevket Gorgulu, Ahmet Taha Alper

  • 1Cardiology Department, Siyami Ersek Thoracic and Cardiovascular Surgery Center, Istanbul, Turkey. drnuslu@yahoo.com

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
|February 28, 2006
PubMed
Summary
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Generalized vascular dysfunction, including impaired aortic and brachial artery function, is linked to erectile dysfunction (ED) even without traditional cardiovascular risk factors. This suggests a broader vascular disease underlies ED in these patients.

Area of Science:

  • Cardiovascular Medicine
  • Vascular Biology
  • Urology

Background:

  • Erectile dysfunction (ED) can occur in men without overt atherosclerosis or major cardiovascular risk factors.
  • The underlying cause in these cases may involve generalized vascular dysfunction.

Purpose of the Study:

  • To investigate whether generalized vascular dysfunction is present in patients with ED who do not have atherosclerosis or its major risk factors.
  • To assess aortic and brachial artery function in this patient group.

Main Methods:

  • The study enrolled 30 outpatients with ED and 25 healthy controls.
  • Aortic stiffness was measured using echocardiography.
  • Endothelium-dependent (flow-mediated dilation, FMD) and endothelium-independent brachial artery dilation were assessed using high-resolution ultrasound.

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Main Results:

  • Patients with ED showed significantly reduced FMD compared to controls (4.1% vs 9.7%, P < .001).
  • Aortic strain and distensibility were significantly lower in the ED group, indicating increased aortic stiffness.
  • Significant inverse relationships were found between ED and FMD (r = -0.66) and between ED and measures of aortic stiffness (r = -0.62 to -0.60).

Conclusions:

  • Men with ED but without cardiovascular disease or major risk factors exhibit impaired aortic and brachial artery function.
  • These findings suggest a more generalized vascular disease process in men with ED.
  • Vascular dysfunction may be a key underlying factor in ED, even in the absence of traditional risk factors.