Correlation between penile duplex findings and stress electrocardiography in men with erectile dysfunction

Area of Science:

• Cardiology
• Urology
• Vascular Medicine

Background:

• Coronary artery disease (CAD) is a significant health concern in men over 40.
• Vasculogenic erectile dysfunction (ED) shares common risk factors with CAD.
• Early detection of CAD in patients with ED is crucial for cardiovascular health.

Purpose of the Study:

• To investigate the association between vasculogenic ED and CAD in men over 40.
• To determine if penile arterial blood flow parameters can predict the presence of CAD.
• To assess the diagnostic value of peak systolic velocity (PSV) in identifying ischemic heart disease (IHD) in this population.

Main Methods:

• A cohort of 40 men over 40 with vasculogenic ED underwent dynamic duplex ultrasonography after intracavernosal injection.
• Patients also performed a stress electrocardiogram (ECG) test using the Bruce Protocol.
• Peak systolic velocity (PSV) measurements of cavernosal arteries were correlated with stress ECG results.

Main Results:

• 12 out of 40 patients were diagnosed with positive ischemic heart disease (IHD).
• Mean PSV was significantly lower in patients with positive IHD (19.58 cm/s) compared to those with negative IHD (36.21 cm/s) (P = 0.003).
• A PSV threshold of <35 cm/s demonstrated 50% sensitivity and 100% specificity for predicting IHD.

Conclusions:

• Penile arterial peak systolic velocity (PSV) is a reliable indicator for predicting ischemic heart disease (IHD) in men with vasculogenic erectile dysfunction (ED).
• Men with vasculogenic ED and a PSV <35 cm/s warrant cardiologic evaluation due to a high risk of silent IHD.
• This non-invasive ultrasound measurement can aid in identifying patients who require further cardiac assessment.