A screening sequence for vasculogenic impotence

Area of Science:

• Urology
• Vascular Surgery
• Neurology

Background:

• Penile erectile failure requires precise diagnosis for effective surgical intervention.
• Identifying specific neural, arterial, and venous contributions is crucial, especially in men with impotence as the sole sign of pelvic arterial disease.

Purpose of the Study:

• To delineate the neural, arterial, and venous components of erectile dysfunction.
• To establish a diagnostic sequence for patient selection in surgical interventions for impotence.

Main Methods:

• Noninvasive penile perfusion estimates (pulse volume recording, penile/brachial blood pressure indices).
• Evoked potentials (somatosensory evoked potentials, bulbocavernosus reflex time).
• Pharmacological testing (papverine-induced artificial erection) and selective arteriography/cavernosography.

Main Results:

• Abnormal penile blood perfusion significantly correlated with smoking and overt large vessel disease.
• Covert neurological abnormalities were detected in a substantial portion of impotent men.
• Combined abnormal perfusion and failed artificial erection predicted specific arterial diseases.

Conclusions:

• A comprehensive diagnostic approach is essential for understanding erectile dysfunction.
• Smoking and vascular disease are key contributors to impaired penile perfusion.
• Neurological deficits and specific arterial pathologies require targeted investigation.