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  • Title: Color Doppler appearance of penile cavernosal-spongiosal communications in patients with high-flow priapism.
    Author: Bertolotto M, Zappetti R, Pizzolato R, Liguori G.
    Journal: Acta Radiol; 2008 Jul; 49(6):710-4. PubMed ID: 18568565.
    Abstract:
    BACKGROUND: Superselective embolization of the torn artery is currently considered the treatment of choice for patients with high-flow priapism. After embolization, however, the arterial-sinusoidal fistula is still patent in a significant percentage of patients, despite arteriographic evidence of occlusion. PURPOSE: To investigate the prevalence and flow characteristics of penile cavernosal-spongiosal communications (CSCs) in patients with high-flow priapism, and to establish whether the recognition of these vessels before and after angiographic embolization has a role in predicting the outcome of therapy. MATERIAL AND METHODS: Twelve consecutive patients with high-flow priapism underwent penile color Doppler ultrasound before and after angiographic embolization of the arterial-sinusoidal fistula. The prevalence of CSCs feeding the fistula was evaluated before and after embolization. RESULTS: Before angiographic embolization, color Doppler ultrasound identified five CSCs in 3/12 patients. One CSC was proximal to the fistula, and 4/5 were distal. After angiographic embolization, the fistula was not completely closed in these patients, fed by the distal CSCs. However, spontaneous closure occurred within 1 month. The fistula was also fed by CSCs in another two patients in whom these vessels were not evident before embolization. In one case, the fistula closed spontaneously within 1 week, while in the other case the fistula remained patent, fed by other collateral vessels. CONCLUSION: The type of vessels that are involved in refilling the fistula after embolization is of concern for the outcome of the patients. In our series, the fistulas supplied only by CSCs closed spontaneously within 1 month. Watchful waiting should be preferred to repeated embolization to avoid the risk of unnecessary procedures.
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