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- Title
Stent fracture in revascularization for symptomatic ostial vertebral artery stenosis.
- Authors
Tsutsumi, Masanori; Kazekawa, Kiyoshi; Onizuka, Masanari; Kodama, Tomonobu; Matsubara, Shuko; Aikawa, Hiroshi; Iko, Minoru; Nii, Kouhei; Etou, Housei; Tanaka, Akira
- Abstract
We assessed the long-term follow-up examinations and complications of percutaneous transluminal angioplasty and stenting (PTAS) for symptomatic ostial vertebral artery (VA) stenosis. 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. 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. 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.
- Subjects
TRANSLUMINAL angioplasty; VERTEBRAL artery surgery; ARTERIAL stenosis; STENOSIS; SURGICAL stents
- Publication
Neuroradiology, 2007, Vol 49, Issue 3, p253
- ISSN
0028-3940
- Publication type
Article
- DOI
10.1007/s00234-006-0185-x