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ITALIAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY
Rivista di Chirurgia Vascolare ed Endovascolare
REVIEWS CONCURRENT CAROTID REVASCULARIZATION AND CORONARY ARTERY BYPASS
Italian Journal of Vascular and Endovascular Surgery 2009 December;16(4):223-32
Asymptomatic carotid artery stenosis: a review
Rezayat C., Shrikhande G., McKinsey J. F.
Division of Vascular Surgery, New York Presbyterian Hospital, Columbia College of Physicians and Surgeons, Weil Medical College of Cornell University, New York, NY, USA
The use of carotid endarterectomy (CEA) in the treatment of symptomatic carotid stenosis has become well accepted practice based on the results of the North American Symptomatic Carotid Endarterectomy Trial (NASCET) and the European Carotid Surgery Trial (ECST). Similarly, the Asymptomatic Carotid Atherosclerosis Study (ACAS) and the Asymptomatic Carotid Surgery Trial (ACST) have shown significant risk reduction with CEA in patients with asymptomatic carotid stenosis. Since the results of these studies however, there have been significant advances in medical therapy, surgical technique and less invasive endovascular options for the treatment of carotid stenosis. The Stenting and Angioplasty with Protection in Patients at High Risk for Endarterectomy (SAPHIRE) trial was able to show the non-inferiority of carotid artery stenting (CAS) to CEA in a subset of high risk patients. Based on this and the results of multiple registries some have extrapolated the benefit of CAS over best medical therapy (BMT) for the treatment of carotid stenosis. Despite the results of these studies, there is still significant debate in the use of CEA and CAS for the treatment of asymptomatic carotid stenosis. In this paper, we will review the major clinical trials and evaluate the three treatment options for asymptomatic carotid stenosis: CEA, CAS, and BMT.