Coronary Phenotypes in Patients with Erectile Dysfunction and Silent Ischemic Heart Disease: A Pilot Study

ABSTRACT Introduction Accumulated evidence shows that erectile dysfunction (ED) may be a precursor of coronary artery disease (CAD). Aims The purpose of this study was to explore the differences in coronary phenotypes between patients with ED and patients with angina pectoris. Methods The study enrolled 30 ED patients (study group) and 120 age-matched angina patients who had no ED (control group). All patients had angiographically documented CAD. Main Outcome Measures The differences in demographic characteristics, biochemical profiles and coronary characteristics between the study and control groups were compared. Results Diabetes mellitus (DM) and obesity defined by body mass index were more common in the study group than in the control group. The mean number of lesions and mean number of vessels with evidence of CAD were significantly different between the study and control groups (2.3 ± 0.1 vs. 2.2 ± 0.1, P P P  = 0.004). Significant differences were also observed in type C lesions (52.9% in study group vs. 38.0% in control group, P  = 0.026). Fewer calcified, irregular, and bifurcated lesions were present in the study group compared to control. Conclusions This study documented coronary phenotypes in ED patients without symptomatic CAD. Although the artery size hypothesis and ED had well been thought to be a precursor of CAD, the severity of coronary lesions in these patients was not more benign than that observed in angina pectoris patients who have no ED. Chang S-T, Chu C-M, Hsiao J-F, Chung C-M, Shee J-J, Chen C-S, and Hsu J-T. Coronary phenotypes in patients with erectile dysfunction and silent ischemic heart disease: A pilot study.