Abstract
We describe the complications of endovascular embolization for cerebral arteriovenous malformations (AVMs). 164 consecutive patients with AVMs treated by endovascular embolization between 1998 and 2003 were retrospectively reviewed. Over a five-year period, 292 embolization procedures were performed in 164 patients with embolization as the primary treatment modality (n=126) or as an adjunct to surgery (n =14) or radiosurgery (n=24). There were a total of 15 (9.1% per patient, 5.1% per procedure) complications in this series, of which 14 were clinically significant (8.5% of patients, 4.8% per procedure), and one was a technical complication (0.6% of patients, 0.3% per procedure). Excellent or good outcomes (Glasgow Outcome Scale ≥ 4) were observed in 136 (82.9%) patients at discharge. Neurological deficits (Glasgow Outcome Scale 1-4) as a direct result of embolization were 7.3% at discharge. In a single-center, retrospective, nonrandomized study, 82.9% of patients had excellent or good outcomes at discharge after AVM embolization, with a complication rate of 5.1%.
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