Felipe Padovani Trivelato1, Marco Túlio Salles Rezende2, Alexandre Cordeiro Ulhoa2, Guilherme Seizem Nakiri3, Daniel Giansante Abud3. 1. Division of Interventional Neuroradiology, Felício Rocho Hospital, Rua Timbiras 3616, Barro Preto, 30320-670 Belo Horizonte, Minas Gerais, Brazil. Electronic address: felipepadovani@yahoo.com.br. 2. Division of Interventional Neuroradiology, Felício Rocho Hospital, Rua Timbiras 3616, Barro Preto, 30320-670 Belo Horizonte, Minas Gerais, Brazil. 3. Division of Interventional Neuroradiology, Hospital das Clínicas da Faculdade de Medicina, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil.
Abstract
PURPOSE: Spinal dural arteriovenous fistulas (sDAVF) are the most common spinal vascular lesions. The arterialization of the recipient vein results in venous hypertension and chronic ischemia. Intravascular injection of acrylic glue in order to occlude the draining vein is the principle of endovascular treatment, but a significant portion of embolization procedures do not succeed. We present our initial experience of endovascular balloon augmented embolization of sDAVF using a dual-lumen balloon. CLINICAL PRESENTATION: Three patients harboring sDAVF were submitted to endovascular treatment by onyx injection assisted by a double-lumen balloon as the sole therapy. Control angiography demonstrated complete obliteration of the fistula in all cases with clinical improvement. CONCLUSION: Dual-lumen balloon onyx embolization of spinal dural arteriovenous fistulas appears to be an acceptable and feasible alternative.
PURPOSE:Spinal dural arteriovenous fistulas (sDAVF) are the most common spinal vascular lesions. The arterialization of the recipient vein results in venous hypertension and chronic ischemia. Intravascular injection of acrylic glue in order to occlude the draining vein is the principle of endovascular treatment, but a significant portion of embolization procedures do not succeed. We present our initial experience of endovascular balloon augmented embolization of sDAVF using a dual-lumen balloon. CLINICAL PRESENTATION: Three patients harboring sDAVF were submitted to endovascular treatment by onyx injection assisted by a double-lumen balloon as the sole therapy. Control angiography demonstrated complete obliteration of the fistula in all cases with clinical improvement. CONCLUSION: Dual-lumen balloon onyx embolization of spinal dural arteriovenous fistulas appears to be an acceptable and feasible alternative.