Document Detail


Preoperative embolization of cerebral arteriovenous malformations with polyvinyl alcohol particles: experience in 51 adults.
MedLine Citation:
PMID:  2112315     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In order to determine possible risk factors and to assess the value of platinum microcoils added to polyvinyl alcohol particles in preoperative embolization of cerebral arteriovenous malformations in adults, we reviewed our experience with this procedure. Between September 1985 and June 1989, we performed embolizations in 54 patients with cerebral arteriovenous malformations. Of these, procedures in 51 adults involved the use of polyvinyl alcohol particles, either alone (n = 29) or in combination with platinum microcoils (n = 21). A complication during catheterization precluded embolization in another patient. Beginning as flow-directed embolizations via carotid artery catheterizations (n = 12), newer catheters allowed progression to superselective intracerebral catheterizations (n = 38). Embolization has led to shorter surgical procedures, more clearly defined operative margins, and less bloody operative fields. We have not found recanalization to significantly hinder embolization results with polyvinyl alcohol when resection is undertaken within 1-4 weeks of embolization. Its relative safety and ease of manipulation at surgery argue for its use. We found no significant increase in complications based on patient age, venous drainage of the arteriovenous malformation, or the circulation embolized. Embolization results in cerebral arteriovenous malformations were improved with superselective catheterization and most improved with the combined use of polyvinyl alcohol for nidus embolization followed by occlusion of the feeding vessel with microcoils.
Authors:
P D Purdy; D Samson; H H Batjer; R C Risser
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  AJNR. American journal of neuroradiology     Volume:  11     ISSN:  0195-6108     ISO Abbreviation:  AJNR Am J Neuroradiol     Publication Date:  1990 May 
Date Detail:
Created Date:  1990-07-11     Completed Date:  1990-07-11     Revised Date:  2008-02-14    
Medline Journal Info:
Nlm Unique ID:  8003708     Medline TA:  AJNR Am J Neuroradiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  501-10     Citation Subset:  IM    
Affiliation:
Department of Radiology, University of Texas-Southwestern Medical School, Dallas 75235.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Cerebral Angiography
Cerebrovascular Circulation
Embolization, Therapeutic / methods*
Female
Humans
Intracranial Arteriovenous Malformations / physiopathology,  radiography,  therapy*
Male
Middle Aged
Polyvinyl Alcohol / therapeutic use*
Chemical
Reg. No./Substance:
9002-89-5/Polyvinyl Alcohol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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