Neurologic Complications of Arteriovenous Malformation Embolization Using Liquid Embolic Agents

摘要: BACKGROUND AND PURPOSE: Embolization of arteriovenous malformations (AVMs) is commonly used to achieve nidal volume reduction before microsurgical resection or stereotactic radiosurgery. The purpose this study was examine the overall neurologic complication rate in patients undergoing AVM embolization and analyze factors that may determine increased risk. MATERIALS METHODS: We performed a retrospective review all with brain AVMs embolized at 1 center from 1995 through 2005. Demographics, including age, sex, presenting symptoms, clinical condition, were recorded. Angiographic maximal size, presence deep venous drainage, involvement eloquent cortex also For each session, agent used, number pedicles embolized, percentage obliteration, any complications Complications classified as following: none, non-neurologic (mild), transient deficit, permanent nondisabling disabling deficits. ischemic hemorrhagic. Modified Rankin Scale (mRS) scores collected pre- postembolization on patients. Univariate regression analysis associated development performed. RESULTS: Four hundred eighty-nine procedures 192 There 6 Spetzler-Martin grade I (3.1%), 26 II (13.5%), 71 III (37.0%), 57 IV (29.7%), 32 V (16.7%) AVMs. Permanent occurred 5 (2.6%) deaths 3 (1.6%). In addition, there 4 (2.1%) deficits 22 (11.5%). Five 8 (2.6% overall) ischemic, (1.6% Of 178 who mRS 0–2 pre-embolization, (2.3%) dependent dead (mRS >2) follow-up. risk for following showed basal ganglia location weakly new deficit. CONCLUSION: can be high degree technical success low complications.