Document Detail

Embolization of cerebral aneurysms with a liquid embolus, EVAL mixture: report of three cases.
MedLine Citation:
PMID:  8861698     Owner:  NLM     Status:  MEDLINE    
Embolization of three surgically difficult cerebral aneurysms was performed using our newly developed non-adhesive embolic material, EVAL mixture (ethylene vinyl alcohol copolymer). Conventional embolic materials such as detachable balloons or microcoils were not used because of a large or irregular aneurysmal neck. After temporary occlusion of the parent artery with a superselective balloon catheter, the EVAL mixture was slowly injected through a microcatheter placed in the aneurysm or parent artery. The locations of the aneurysms were anterior communicating artery, basilar artery-posterior cerebral artery and basilar artery-anterior inferior cerebellar artery (BA-AICA). One aneurysmal occlusion and 2 parent artery occlusions were performed. Patients had no persistent deficits. The patient with the BA-AICA aneurysm associated with an arteriovenous malformation died of rupture of the residual AVM due to haemodynamic change 2 weeks after embolization. In selected and limited cases, embolization of surgically difficult cerebral aneurysms using EVAL mixture was more effective and safer than embolization using conventional embolic materials such as balloons and microcoils.
S Nishi; W Taki; I Nakahara; K Yamashita; A Sadatoh; H Kikuchi; H Hondo; K Matsumoto; H Iwata; Y Shimada
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Acta neurochirurgica     Volume:  138     ISSN:  0001-6268     ISO Abbreviation:  Acta Neurochir (Wien)     Publication Date:  1996  
Date Detail:
Created Date:  1997-02-25     Completed Date:  1997-02-25     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0151000     Medline TA:  Acta Neurochir (Wien)     Country:  AUSTRIA    
Other Details:
Languages:  eng     Pagination:  294-300     Citation Subset:  IM    
Department of Neurosurgery, Faculty of Medicine, Kyoto University, Kyoto, Japan.
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MeSH Terms
Embolization, Therapeutic / methods*
Intracranial Aneurysm / therapy*
Middle Aged
Polyvinyls / administration & dosage*
Reg. No./Substance:
0/Polyvinyls; 25067-34-9/ethylene-vinyl alcohol copolymer

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