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

The recruitment status of this study is unknown because the information has not been verified recently.
Verified August 2005 by National Taiwan University Hospital.
Recruitment status was  Recruiting
Information provided by:
National Taiwan University Hospital Identifier:
First received: September 12, 2005
Last updated: September 14, 2005
Last verified: August 2005

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.

Vertebral Artery Stenosis

Study Type: Observational
Study Design: Observational Model: Defined Population
Time Perspective: Longitudinal
Official Title: Clinical Results and Restenosis Analysis of Symptomatic Ostial Vertebral Artery Stenosis Treated With Tubular Coronary Stents

Further study details as provided by National Taiwan University Hospital:


Genders Eligible for Study:   Both

Inclusion Criteria:

Patients with symptomatic vertebral artery stenosis treated by stenting

Exclusion Criteria:

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00172458

Contact: Hesien-Li Kao, MD 886-2-23123456 ext 5874

National Taiwan University Hospital Recruiting
Taipei, Taiwan
Contact: Hesien-Li Kao, MD    886-2-23123456 ext 5874   
Sponsors and Collaborators
National Taiwan University Hospital
Principal Investigator: Hesien-Li Kao, MD National Taiwan University Hospital
  More Information

No publications provided Identifier: NCT00172458     History of Changes
Other Study ID Numbers: 9361700454 
Study First Received: September 12, 2005
Last Updated: September 14, 2005
Health Authority: Taiwan: Department of Health

Additional relevant MeSH terms:
Constriction, Pathologic
Vertebrobasilar Insufficiency
Brain Diseases
Brain Ischemia
Cardiovascular Diseases
Central Nervous System Diseases
Cerebrovascular Disorders
Nervous System Diseases
Pathological Conditions, Anatomical
Vascular Diseases processed this record on February 08, 2016