Viewing Study NCT00172458



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Last Modification Date: 2024-10-26 @ 9:16 AM
Study NCT ID: NCT00172458
Status: UNKNOWN
Last Update Posted: 2005-09-15
First Post: 2005-09-12

Brief Title: Clinical Results and Restenosis Analysis of Symptomatic Ostial Vertebral Artery Stenosis Treated With Tubular Coronary Stents
Sponsor: National Taiwan University Hospital
Organization: National Taiwan University Hospital

Study Overview

Official Title: Clinical Results and Restenosis Analysis of Symptomatic Ostial Vertebral Artery Stenosis Treated With Tubular Coronary Stents
Status: UNKNOWN
Status Verified Date: 2005-08
Last Known Status: RECRUITING
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: Vertebral artery stenosis VAS decreases posterior brain perfusion causing vertebrobasilar insufficiency VBI It is also an important embolic source to the posterior brain The most frequently involved location is the proximal part of the vessel including the ostium Various surgical procedures have been described for the treatment of proximal VAS with symptoms refractory to medical therapy but all are technically difficult with high operative mortality and morbidity

Endovascular intervention has been described as an alternative to surgery Balloon angioplasty is limited by elastic recoil and dissection The restenosis rates reported in the literature varied as high as 75 Stenting offers salvage following unsuccessful balloon angioplasty and primary stenting have been shown to be safe and effective with lower restenosis rate Coronary equipments are ideal for ostial VAS considering the size of the artery and location of the lesion Recently Albuquerque et al reports a relative high restenosis rate in a longer follow-up duration Restenosis seems to become an important issue regarding the patients quality of life However there is no clinical parameter to predict restenosis of VAS The purpose of this study is to evaluate the clinical results of our series of symptomatic ostial VAS treated exclusively with tubular balloon expandable coronary stents We sought to identify predictors of restenosis

This is a clinical observation study Only chart review and angiographic review will be performed
Detailed Description: None

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None