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[Pharmacocavernosometry and pharmacocavernosography in erectile dysfunction]
Der Urologe. Ausg. A
|May 1, 1990
Summary
Pharmacocavernosometry (PCM) and pharmacocavernosography (PCG) investigate venous outflow disturbances in erectile dysfunction (ED). New findings reveal lower normal flow values and restricted surgical indications for venous leakage.
Area of Science:
- Urology
- Andrology
- Vascular Physiology
Context:
- Erectile dysfunction (ED) affects approximately 30% of patients.
- Venous outflow disturbance is a key cause of ED.
- Pharmacocavernosometry (PCM) and pharmacocavernosography (PCG) are standard diagnostic tools.
Purpose:
- To describe the investigation technique of PCM and PCG.
- To report findings from 364 studies, including 111 patients using a new cavernosography pump.
- To establish new reference values for venous outflow and pressure drop time.
Summary:
- PCM quantifies venous outflow disturbances, while PCG localizes them.
- New normal values for maintenance flow are <15 ml/min.
- Normal pressure drop time is >1 minute, with pathological values in seconds.
Impact:
- Identified significantly lower normal flow values than previously assumed.
- Demonstrated that isolated deep dorsal vein outflow is rare (10%).
- Showed widespread deep penile vein involvement (72%), considerably restricting operative indications for venous outflow disturbances.