Summary
Between April 1985 and January 1994, 24 patients with spinal arteriovenous malformations (AVMs) were admitted to Osaka Neurological Institute. These patients included 7 with dural arteriovenous fistulas (AVFs), 5 with perimedullary AVFs, and 12 with intramedullary AVMs. All 24 patients were treated with endovascular techniques or open surgery or both methods. Conventional embolization was performed by introducing an angiographic catheter into the origin of the segmental artery and injecting polyvinyl alcohol (PVA) strips (500–1000 µm) in a flow-directed manner. Selective embolization was performed with a microcatheter and various embolic materials. We usually used PVA particles (Ivalon), silk suture, isobutyl-2-cyanoacrylate, or PVA solutions. Thirteen patients (54.2%) underwent surgery. Complete or partial recanalization was detected in 71.4% and the appearance of newly developed feeding arteries in 35.7% of patients who underwent conventional embolization. Complete or partial recanalization was detected in 47.1%, and new feeding systems appeared in 11.8% of patients who underwent selective embolization. In summary, spinal AVMs should be treated with endovascular techniques, and open surgery may be required when embolization fails to occlude the nidus or fistula.
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© 1994 Springer-Verlag Tokyo
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Touho, H. (1994). Surgical and Endovascular Treatment of Spinal Arteriovenous Malformations. In: Tamaki, N. (eds) Cerebrospinal Vascular Diseases. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68278-3_7
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DOI: https://doi.org/10.1007/978-4-431-68278-3_7
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