Document Detail


Gamma knife for cerebral arteriovenous malformations at a single centre.
MedLine Citation:
PMID:  22030422     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Background: We report the results of a consecutive series of patients treated with Gamma Knife (GK) Surgery for cerebral arteriovenous malformations (AVMs). Methods: We retrospectively reviewed 69 patients treated with GK for cerebral AVMs between November 2003 and April 2009, recording clinical data, treatment parameters, and AVM obliteration rates in order to assess our effectiveness with GK in treating these lesions. Results: Ten patients were lost to follow-up. Presentations included: seizure (24), hemorrhage (18), persistent headache (12), progressing neurological signs (10), and incidental (9). In 24 patients (34.8%) treatment planning consisted of digital subtraction angiography (DSA), magnetic resonance imaging (MRI), and computed tomogram (CT) angiography (CTA). Currently we rely predominantly on CTA and/or MRI scanning only. Fourty-one patients have been followed for a minimum of 3 years; average age 40.9yr., 58.5% males. Average dose at the 50% isodose line was 20.3 Gy (range 16 to 26.4 Gy). Obliteration was observed in 87.8% by MRI, CT, or DSA. Not all obliteration was confirmed by DSA. Complications occurred in 12 of 59 (20.3%) patients, and in 11 of 41 (26.8%) with 3 year follow-up. Major (temporary) complications for the 59 included symptomatic cerebral edema (7), seizure (2), and hemorrhage (1). Major permanent complications occurred in one patient suffering a cranial nerve V deafferentation, and in two patients suffering a hemorrhage. Conclusion: GKS for cerebral AVM's offers an effective and safe method of treatment, with low permanent complication rate.
Authors:
F A Zeiler; P J McDonald; A Kaufmann; D Fewer; J Butler; G Schroeder; M West
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques     Volume:  38     ISSN:  0317-1671     ISO Abbreviation:  Can J Neurol Sci     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-10-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0415227     Medline TA:  Can J Neurol Sci     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  851-7     Citation Subset:  IM    
Affiliation:
Department of Neurosurgery, Health Sciences Centre.
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