Correlation between internal pudendal artery stenosis and erectile dysfunction in patients with suspected coronary artery disease

Autoři: Ha-Wook Park aff001;  Sung-Ho Her aff001;  Bong-Hee Park aff002;  Dong-Seok Han aff002;  Seung Mo Yuk aff002;  Dae-Won Kim aff001;  Chang Shik Youn aff002;  Hoon Jang aff002
Působiště autorů: The Department of Cardiology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea aff001;  The Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea aff002
Vyšlo v časopise: PLoS ONE 14(11)
Kategorie: Research Article
prolekare.web.journal.doi_sk: 10.1371/journal.pone.0225179



Stenoses of internal pudendal arteries (IPAs) appear to be related to erectile dysfunction (ED). Nevertheless, the correlation between the severity of ED and stenosis of the IPAs is not well established.


To evaluate angiographic findings of IPAs in patients with suspected coronary artery disease (CAD) and to assess the correlation between the severity of ED and IPA stenosis.

Materials and methods

Ninety-one patients who were scheduled for cardiac angiogram (CAG) because of suspected CAD participated. ED was assessed using the International Index of Erectile Function (IIEF) questionnaire. Erectile function (EF) domain scoring was used to assess the severity of ED: severe (EF score = 1–10); moderate (11–16); mild-moderate (17–21); mild (22–25); and no ED (26–30). Angiography was performed in bilateral common, internal iliac, and IPAs and the location and extent of stenoses were measured. We divided patients according to those with maximum stenosis of less than 50% (Group I) and those with more than 50% (Group II), regardless of direction.


We diagnosed 88 patients (88/91, 96.70%) with ED. There was no correlation between increasing age and severity of ED (r = - 0.063, p = 0.555). There were 72 patients in Group I and 19 in Group II. In Group I, 62 patients were diagnosed with ED even though there was no stenosis. There was no significant correlation between the severity of ED and the extent of stenosis in IPAs (r = -0.118, p = 0.265).


There was no significant correlation between the severity of ED and the extent of stenosis of IPAs. We believe that this is because the progression of ED is induced by endothelial cell dysfunction, not by mechanical obstruction leading to blood flow reduction.

Klíčová slova:

Coronary heart disease – Angiography – Lesions – Stenosis – Arteries – Coronary arteries – Nitric oxide – Erectile dysfunction


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