Document Detail

Stent fracture in revascularization for symptomatic ostial vertebral artery stenosis.
MedLine Citation:
PMID:  17151868     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: We assessed the long-term follow-up examinations and complications of percutaneous transluminal angioplasty and stenting (PTAS) for symptomatic ostial vertebral artery (VA) stenosis. METHODS: A retrospective study was done to evaluate 12 patients with symptomatic ostial VA stenosis who underwent PTAS. Six patients were treated with the Palmaz stent and six with a balloon-expandable coronary stent. Initial angiographic follow-up examination was conducted about 12 months after PTAS in all patients. Simple radiographic, ultrasonographic and clinical follow-up examinations were scheduled every 6 months. RESULTS: Excellent dilatation was achieved in all patients without any procedural complications. Initial angiographic follow-up obtained at a mean of 13 months after PTAS detected no restenosis. However, an asymptomatic severe restenosis was detected at 24 months after PTAS in one patient (8%). During a mean follow-up of 31.5 months, three stent fractures were detected in deployed coronary stents (50%). None of the stent fractures was associated with either recurrent stroke or restenosis. No patients developed recurrent symptoms during the follow-up period. CONCLUSION: PTAS for symptomatic ostial VA stenosis is effective in preventing recurrent stroke. As the open-cell single-joint type of stent is associated with the risk of fracture, long-term follow-up examinations including simple radiography are needed.
Masanori Tsutsumi; Kiyoshi Kazekawa; Masanari Onizuka; Tomonobu Kodama; Shuko Matsubara; Hiroshi Aikawa; Minoru Iko; Kouhei Nii; Housei Etou; Akira Tanaka
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Publication Detail:
Type:  Journal Article     Date:  2006-12-07
Journal Detail:
Title:  Neuroradiology     Volume:  49     ISSN:  0028-3940     ISO Abbreviation:  Neuroradiology     Publication Date:  2007 Mar 
Date Detail:
Created Date:  2007-02-23     Completed Date:  2007-07-19     Revised Date:  2008-12-02    
Medline Journal Info:
Nlm Unique ID:  1302751     Medline TA:  Neuroradiology     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  253-7     Citation Subset:  IM    
Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 8188502, Japan.
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MeSH Terms
Aged, 80 and over
Angioplasty, Balloon / adverse effects*
Cerebral Angiography
Middle Aged
Prosthesis Failure
Retrospective Studies
Stents / adverse effects*
Treatment Outcome
Vertebral Artery / pathology*,  radiography
Vertebrobasilar Insufficiency / radiography,  therapy*
Comment In:
Neuroradiology. 2007 Oct;49(10):865; author reply 867   [PMID:  17823792 ]

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