Conservative management of high-flow priapism.

High-flow priapism most frequently occurs as a result of penile trauma with subsequent unchecked arterial flow into the corpora cavernosa. An improved understanding of its underlying pathophysiology has allowed a more selective therapeutic approach, usually with preservation of potency. We report on 4 cases of traumatic high-flow priapism seen over a 5-year period. The patients were managed successfully with conservative treatment consisting of observation after arteriography or percutaneous duplex ultrasound-guided autologous clot embolization where tortuous vessels prevented selective embolization. No patient required surgical repair and hospitalization was brief (0 to 2 days). The use of color duplex ultrasonography provided a noninvasive modality for establishing the site of the injury and allowed serial follow-up evaluation. When conservative measures failed, the color duplex ultrasound study confirmed the presence of the ruptured cavernous artery and allowed percutaneous autologous clot embolization in 1 patient. Long-term follow-up (1 to 4 years) of these patients revealed a return to their preinjury state of erectile function.