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KMID : 1005420220240020144
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Journal of Cerebrovascular and Endovascular Neurosurgery
2022 Volume.24 No. 2 p.144 ~ p.153
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Comparison of transarterial n-BCA and Onyx embolization of brain arteriovenous malformations: A single-center 18-year retrospective analysis
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Behzadi Faraz
Wozniak Amy
Heiferman Daniel M
Africk Benjamin
Ballard Matthew
Chazaro Joshua
Zsigray Brandon
Reynolds Matthew
Anderson Douglas E
Serrone Joseph C
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Abstract
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Objective : Brain arteriovenous malformations (AVM) are commonly treated with endovascular embolization. Due to the rapid evolution of endovascular technology and lack of consistent practice guidelines regarding AVM embolization, further study of AVM embolization outcomes is warranted.
Methods : We conducted a retrospective review of AVMs embolized at a single center from 2002-2019. Patient demographics, AVM characteristics, intention of embolization, and angiographic and clinical outcome after embolization were recorded. We compared the embolization results of those treated with n-butyl cyanoacrylate (n-BCA) and Onyx.
Results : Over an 18-year period at our institution, 30 (33%) of 92 AVMs were treated with embolization. n-BCA was used in 12 cases and Onyx in 18 cases. Eighty-seven pedicles were embolized over 47 embolization sessions. Fifty percent of AVMs treated with n-BCA underwent more than one embolization session compared to 22% when Onyx was used. The median total percent volume reduction in the n-BCA AVMs was 52% compared to 51% in Onyx AVMs. There were 2 periprocedural complications in the n-BCA cohort and none in the Onyx cohort.
Conclusions : In this small retrospective series, Onyx and n-BCA achieved similar occlusion results, although n-BCA required more sessions and pedicles embolized to do so.
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KEYWORD
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Arteriovenous malformation, Embolization, n-butyl cyanacrylate (n-BCA), Ethylene vinyl alcohol copolymer, Onyx
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