Document Detail

Retrievable closed cell intracranial stent for foreign body and clot removal.
MedLine Citation:
PMID:  18596519     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To assess the technical feasibility of using a retrievable, closed cell intracranial stent delivered through a microcatheter for safe removal of foreign bodies or clot. METHODS: In vitro and in vivo testing were performed to demonstrate the feasibility of using retrievable intracranial stents for foreign body or clot removal. In vitro testing was performed in an anatomically correct silicone vascular replica by partially deploying the stent around a coil, then retracting the stent into the microcatheter to trap the coil. Withdrawal of the stent delivery system into the guide catheter resulted in coil removal. Subsequently, the technique was evaluated in a porcine model of intracranial aneurysms, wherein both fresh clot and herniated coils were extracted from the carotid arteries. RESULTS: In these experimental procedures, both herniated coils and fresh clot were safely and easily removed from the in vitro and in vivo models. No periprocedural adverse events were observed. CONCLUSION: These in vitro and in vivo studies suggest the potential use of retrievable stents for the removal of foreign bodies or clot from the intracranial circulation.
Ajay K Wakhloo; Matthew J Gounis
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Publication Detail:
Type:  Evaluation Studies; Journal Article    
Journal Detail:
Title:  Neurosurgery     Volume:  62     ISSN:  1524-4040     ISO Abbreviation:  Neurosurgery     Publication Date:  2008 May 
Date Detail:
Created Date:  2008-07-03     Completed Date:  2008-10-06     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7802914     Medline TA:  Neurosurgery     Country:  United States    
Other Details:
Languages:  eng     Pagination:  ONS390-3; discussion ONS393-4     Citation Subset:  IM    
Departments of Radiology, University of Massachusetts Medical School, Worcester, Massachusetts, USA.
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MeSH Terms
Blood Vessel Prosthesis*
Device Removal / instrumentation*
Equipment Failure Analysis
Foreign Bodies / surgery*
Intracranial Thrombosis / surgery*
Prosthesis Design
Grant Support
R21 EB007767-01/EB/NIBIB NIH HHS

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

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