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Ethylene-vinyl alcohol copolymer (Onyx®) transarterial embolization for post-traumatic high-flow priapism

Abstract : We report a case of high-flow priapism treated successfully with superselective embolization of the cavernous artery. A 16-year-old male developed post-traumatic priapism subsequent to a fall causing blunt perineal trauma. He presented to our hospital four days after trauma. Immediately after the injury, he suffered painless sustained incomplete erection. High-flow priapism was diagnosed on the basis of color doppler ultrasonography findings. Computed tomography scan showed a high-flow arterio-venous fistula with feeders from branches of the right internal iliac artery. Selective arteriography of the right internal pudendal artery demonstrated an arterio-cavernous fistula. The fistula was superselectively embolized with ethylene-vinyl alcohol copolymer (Onyx (R)) liquid agent and disappeared completely. Improvement was noted, with significant detumescence on table. This was later confirmed on repeat color Doppler imaging. At follow-up 3 months later, he had normal erectile function. To our knowledge, transarterial embolization of high-flow priapism with Onyx (R) has never been reported and appears to be a safe and effective treatment for managing patients with such a condition.
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Contributeur : Le2i - Université de Bourgogne <>
Soumis le : mardi 10 janvier 2017 - 18:50:51
Dernière modification le : vendredi 17 juillet 2020 - 14:54:10

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Olivier Chevallier, Sophie Gehin, Alain Foahom-Kamwa, Pierre Pottecher, Sylvain Favelier, et al.. Ethylene-vinyl alcohol copolymer (Onyx®) transarterial embolization for post-traumatic high-flow priapism. Quantitative Imaging in Medicine and Surgery, AME Publishing, 2016, 6 (3), pp.323 - 327. ⟨10.21037/qims.2016.06.02⟩. ⟨hal-01431435⟩



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