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Updated: Jun 10, 2026
A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
Published on: May 14, 2013
Stenting of the extracranial carotid artery in a high-risk population
K Matsushita1, F Akai, Y Teramoto
1Department of the Neurosurgery, Kishiwada-Tokushukai Hospital; Osaka, Japan - ktokushu@osaka.threewebnet.or.jp.
Insights
Stent-supported angioplasty effectively treated carotid stenosis in high-risk patients, significantly reducing blockage with no complications. This procedure offers a safe alternative to traditional surgery for eligible individuals.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
- Neurology
Background:
- Carotid stenosis poses a significant stroke risk.
- Carotid endarterectomy (CEA) is a standard treatment but carries risks for high-risk patients.
- Minimally invasive options are needed for this population.
Purpose of the Study:
- To evaluate the safety and efficacy of stent-supported angioplasty for treating carotid stenosis.
- To assess outcomes in a high-risk surgical population.
Main Methods:
- Nine high-risk patients with carotid stenosis underwent stent-supported angioplasty.
- A transfemoral approach was used with a balloon-expandable stent.
- Angiographic stenosis was measured before and after stenting, and at 3 and 6 months post-procedure.
Main Results:
- Technical success was achieved in all nine patients.
- Mean stenosis decreased from 84% to 5.2% immediately post-procedure.
- No periprocedural complications or arterial dissections occurred.
- Long-term patency (>6 months) was observed in seven patients with minimal residual stenosis (mean 20-21%).
Conclusions:
- Stent-supported angioplasty is a safe and effective alternative to CEA for high-risk patients with carotid stenosis.
- The procedure leads to significant stenosis reduction and maintains vessel patency.
- It offers a viable treatment option when CEA risks are high.
Summary:
The results of nine patients with carotid stenosis in a high-risk surgical population that were treated by stent supported angioplasty are reported. There were eight males and one female between the ages of 53 to 74. A balloon expandable stent was deployed by a transfemoral approach. Technical success was achieved in all cases. There were no periprocedural complications. The mean % stenosis decreased from 84% to 5.2% after stenting. No arterial dissection was recorded and smooth contour of the vessel was demonstrated in all patients. We have observed long term patency for over 6 months in seven patients. Mean angiographic stenosis was 20% and 21% at 3 and 6 months, respectively (range, 5 to 32%). No further stenosis was recorded. Carotid stenting is an alternative strategy to carotid endoarterectomy (CEA) for high-risk patients, for whom the complications of CEA may exceed the potential benefits.