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The role of carotid angioplasty and stenting
1Comprehensive Stroke Center, University of Alabama at Birmingham 35294, USA.
Insights
Endovascular therapy, including angioplasty and stenting, offers new options for carotid artery disease prevention. It is effective for complex lesions where surgery is risky or not feasible.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
- Neurology
Background:
- Stroke prevention in carotid pathology traditionally involves anticoagulation or carotid endarterectomy.
- Percutaneous endovascular techniques are emerging as a popular alternative for treating carotid artery lesions.
Purpose of the Study:
- To review the effectiveness and applications of endovascular therapy for carotid artery disease.
- To compare endovascular approaches with traditional surgical methods.
Main Methods:
- Review of percutaneous endovascular techniques, including balloon angioplasty and stenting.
- Analysis of current evidence regarding endovascular therapy for various carotid artery lesion types.
Main Results:
- Endovascular therapy is effective for lesions difficult to access surgically, post-endarterectomy restenosis, non-atherosclerotic lesions, and high-risk surgical patients.
- The efficacy in treating ideal surgical candidates (Type A lesions) requires further investigation through randomized trials.
Conclusions:
- Endovascular therapy is a valuable option for specific carotid artery pathologies, expanding treatment possibilities.
- Further prospective randomized trials are necessary to define the optimal role of endovascular procedures, especially for Type A lesions.
Abstract:
The prevention of stroke in patients with carotid pathology has been traditionally carried out with either medications that prevent clot formation (i.e., warfarin or antiplatelet agents) or revascularization of stenotic segments of the artery by surgical means (i.e., carotid endarterectomy). Recently, the use of percutaneous endovascular techniques, to treat lesions of the carotid artery has become increasingly popular. The most important techniques being used for this purpose are balloon angioplasty and stenting. Although still under intense investigation, it is already clear that endovascular therapy of the carotid artery is effective in the correction of lesions not readily accessible by surgery, those due to recurrent stenosis after endarterectomy, those not of an atherosclerotic nature, and those with unusually high surgical morbidity and mortality. The role of endovascular therapy in the treatment of type A lesions, which are perfect for endarterectomy, awaits the completion of prospective randomized trials. However, care must be exercised in the planning of these trials to allow a fair testing of the endovascular procedures.