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Endoluminal treatment of internal carotid artery stenosis
K Mathias1, H Jäger, S Hennigs
1Department of Radiology, Academic Teaching Hospital, Städtische Kliniken Dortmund, Beurhausstrasse 40, D-44 137 Dortmund, Germany.
Insights
Percutaneous transluminal stent-angioplasty and carotid surgery have similar indications for treating carotid artery stenosis. Patient-specific factors determine the optimal intervention for the best outcomes.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
Background:
- Carotid artery stenosis poses a significant risk of stroke.
- Both surgical endarterectomy and endovascular stent-angioplasty are established treatments.
Purpose of the Study:
- To compare the indications and outcomes of carotid artery stent-angioplasty versus carotid endarterectomy.
- To evaluate the suitability of endovascular techniques in specific clinical and morphological scenarios.
Main Methods:
- Review of experiences with over 800 carotid stent-angioplasty procedures.
- Analysis of existing reports on carotid angioplasty outcomes.
- Comparison with established carotid endarterectomy data.
Main Results:
- Endovascular stent-angioplasty is favored in cases of myocardial infarction, contralateral carotid occlusion, or tandem stenoses.
- Carotid endarterectomy is preferred for large clots, heavily calcified plaques, or tortuous arteries.
- Technical success, complication, and early long-term results are comparable between the two methods.
Conclusions:
- The choice between carotid stent-angioplasty and endarterectomy depends on individual patient conditions and lesion morphology.
- Further randomized trials are essential to definitively establish which procedure offers the greatest benefit for specific patient profiles.
Abstract:
Percutaneous transluminal stent-angioplasty of the carotid artery has indications that are similar but not identical to those for carotid surgery. Certain clinical conditions and morphologic findings, such as myocardial infarction, occlusion of the contralateral carotid artery, or tandem stenoses, favor use of the endoluminal technique. On the other hand, large clots at the site of stenosis, heavily calcified plaques, or elongated, kinked carotid arteries are better suited for carotid endarterectomy. Our experiences with angioplasty of more than 800 carotid stenoses and reports of other groups dealing with carotid angioplasty permit a preliminary evaluation of the method. The technical success rates, complication rates, and the few known long-term results are more or less equal to those of vascular surgery. Therefore further prospectively randomized studies are necessary to determine from which procedure the patient with his or her individual condition can gain the highest benefit.