Document Detail

Linac Stereotactic Radiosurgery for the Treatment of Small Arteriovenous Malformations: Lower Doses Can Be Equally Effective.
MedLine Citation:
PMID:  22005899     Owner:  NLM     Status:  Publisher    
Objective: The purpose of this study was to examine the efficacy and toxicity of treating small arteriovenous malformations (AVMs) (≤3 cm in diameter) with a median marginal applied dose of 14 Gy. Methods: Two hundred and thirteen patients diagnosed with AVMs were treated between January 1991 and December 2005. Seventy-three percent of the patients had hemorrhaged prior to treatment, 13% had had previous surgery and 19.2% had had previous embolization. The median follow-up duration was 48.1 months. Results: The Kaplan-Meier analysis estimated that the 36-month obliteration rate was 65.5% for patients undergoing their first stereotactic radiosurgery (SRS) and 68.3% for those undergoing repeated SRS. The Kaplan-Meier analysis estimated the 60-month AVMs obliteration rate for the entire cohort to be 82.4%. The median time to AVM obliteration was 40 ± 2.8 months. We found a statistically significant relationship between the time of obliteration and the following factors: site of the AVMs (sites other than brainstem), a higher prescribed dose and a positive history of previous hemorrhage. Thirteen patients (7.6%) experienced toxicities. Conclusions: SRS was an effective and safe treatment for AVMs ≤3 cm in diameter, with acceptable toxicity.
G L Flores; K Sallabanda; M A Dos Santos; J Gutiérrez; J C B P Salcedo; C Beltrán; C P Fernández; M G Atienza; J Samblás
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-14
Journal Detail:
Title:  Stereotactic and functional neurosurgery     Volume:  89     ISSN:  1423-0372     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8902881     Medline TA:  Stereotact Funct Neurosurg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  338-345     Citation Subset:  -    
Copyright Information:
Copyright © 2011 S. Karger AG, Basel.
Radiotherapy Department, Instituto Madrileño de Oncologia/Grupo IMO, Madrid, Spain.
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