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Clinical Results and Restenosis Analysis of Symptomatic Ostial Vertebral Artery Stenosis Treated With Tubular Coronary Stents

NCT00172458 · Status: UNKNOWN · Type: OBSERVATIONAL

Last updated 2005-09-15

No results posted yet for this study

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.

Conditions

  • Vertebral Artery Stenosis

Sponsors & Collaborators

  • National Taiwan University Hospital

    lead OTHER

Principal Investigators

  • Hesien-Li Kao, MD · National Taiwan University Hospital

Eligibility

Min Age
0 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Countries

  • Taiwan

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00172458 on ClinicalTrials.gov