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  • Title: Posttraumatic high-flow priapism in children treated with autologous blood clot embolization: long-term results and review of the literature.
    Author: Cantasdemir M, Gulsen F, Solak S, Numan F.
    Journal: Pediatr Radiol; 2011 May; 41(5):627-32. PubMed ID: 21127852.
    Abstract:
    BACKGROUND: Usually high-flow priapism is caused by perineal or penile blunt trauma with direct cavernosal artery injury and formation of an arterial-lacunar fistula. Rarely, cavernosal artery injury may result from penetrating trauma. Treatment of high-flow priapism is not considered an emergency because patients are at low risk for permanent complications. For this type of priapism there are several options for treatment including embolization or surgical ligation. OBJECTIVE: To describe the technique of superselective transcatheter embolization with the use of autologous blood clot and to discuss the long-term results. MATERIALS AND METHODS: Seven children with a mean age of 10 years suffering from high-flow priapism were treated with superselective transcatheter embolization with autologous blood clot. In all cases, colour Doppler US was performed to demonstrate increased cavernous blood flow with definitive diagnosis established by superselective arteriography. After the angiographic diagnosis, superselective transcatheter embolization of the fistula with autologous blood clot was performed during the same session. The children were followed up on a monthly basis up to 1 year with clinical findings and penile colour Doppler US examinations. After 1 year, they were followed up annually with clinical assessment only. The mean follow-up period was 6.0 years. RESULTS: Following embolization complete detumescence was achieved in all but one child, who was treated with a second embolization 3 d after the initial session. In addition, for one child a second session of embolization was performed due to the recurrence of partial erection during the 1 week period after the initital embolization. In both cases, complete detumescence was achieved after the second embolization, and no recurrence of priapism was observed in the follow-up period. CONCLUSION: Selective arterial embolization with autologous clot achieved treatment for high-flow priapism in this study with 100% occlusion rate with a maximum of two sessions and no signs of erectile dysfunction were observed in any of the children during long-term follow-up.
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