Embolization with particles in thoracic intramedullary arteriovenous malformations: long-term angiographic and clinical results

• Published in: Radiology Vol. 177; no. 3; p. 651
• Main Authors: Biondi, A, Merland, J J, Reizine, D, Aymard, A, Hodes, J E, Lecoz, P, Rey, A
• Format: Journal Article
• Language: English
• Published: United States 01-12-1990
• Subjects: Adult; Arteriovenous Malformations - diagnostic imaging; Arteriovenous Malformations - therapy; Embolization, Therapeutic; Female; Follow-Up Studies; Humans; Male; Radiography; Retrospective Studies; Spinal Cord - blood supply; Spinal Cord Diseases - diagnostic imaging; Spinal Cord Diseases - therapy; Subarachnoid Hemorrhage - diagnostic imaging; Subarachnoid Hemorrhage - etiology; Time Factors
• ISSN: 0033-8419
• DOI: 10.1148/radiology.177.3.2243964

To evaluate the long-term results of endovascular treatment with particles in the management of thoracic intramedullary arteriovenous malformations (AVMs), the authors retrospectively reviewed the angiographic and clinical findings in 35 patients. Follow-up was 1-15 years (mean, 6 years) in 28 patients and 6-10 months (mean, 7 months) in seven. A total of 158 embolization procedures were performed in 35 patients. Revascularization occurred frequently, necessitating multiple endovascular sessions. Long-term clinical evaluation showed clinical improvement, compared with the initial status before treatment, in 63% of the patients. Clinical aggravation due to embolization was observed in seven patients (20%) after 12 of the 158 endovascular sessions (8%). These results are better than those reported after surgery and indicate that embolization with particles is an efficient and safe tool in the treatment of thoracic intramedullary AVMs.