Strategies for asymptomatic carotid artery stenosis

2011 ◽  
Vol 31 (6) ◽  
pp. E9 ◽  
Author(s):  
Christopher Doe ◽  
Pinakin R. Jethwa ◽  
Chirag D. Gandhi ◽  
Charles J. Prestigiacomo

The treatment of asymptomatic carotid artery stenosis (ACAS) has continued to evolve for the past 3 decades. With rapidly advancing technology, the results of old trials have become obsolete. While there has been little change in the efficacy of carotid endarterectomy, there have been vast improvements in both medical management and carotid angioplasty with stenting. Finding the best therapy for a given patient can therefore be difficult. In this article, the authors review the current literature regarding treatment options for ACAS and the methods available for stratifying patients who would benefit from surgical versus medical treatment.

2013 ◽  
Vol 79 (10) ◽  
pp. 987-991
Author(s):  
Jason Chang ◽  
Joseph E. Ahn ◽  
Nicholas Landsman ◽  
Katherine Rhee ◽  
Linda Chun ◽  
...  

In the Asymptomatic Carotid Artery Stenosis trial (1995), medical management was defined as aspirin in addition to adequate control of comorbidities. Since then, medical management of asymptomatic carotid artery stenosis (CAS) has progressed to include broader use of statins. Our purpose was to review the effect of contemporary medical management on stroke prevention. A retrospective review of the Kaiser Permanente, Southern California medical group database was performed. All patients with a diagnosis of asymptomatic CAS by International Classification of Diseases, 9th Revision codes from 2007 to 2011 were identified. Intervention for stroke prevention was the criteria for exclusion. Medications used were evaluated as was the rate of stroke. Asymptomatic CAS was noted in 7255 patients. Of these, 158 (2.2%) sustained a stroke within a mean follow-up of 37 months. Patients who were taking a statin had a statistically significant lower risk of stroke (1.6 vs 3.9%). The data support that contemporary medical management of asymptomatic CAS has decreased the incidence of stroke in comparison to previously published data. The use of statins was protective against the development of stroke. Future prospective randomized trials are needed to evaluate the efficacy of carotid intervention versus current medical management.


2014 ◽  
Vol 36 (1) ◽  
pp. E2 ◽  
Author(s):  
Saul F. Morales-Valero ◽  
Giuseppe Lanzino

Asymptomatic carotid artery stenosis is a well-recognized risk factor for ischemic stroke, and its prevalence increases with age. In the late 1980s and in the 1990s, well-designed randomized trials established a definite advantage for carotid endarterectomy in reducing the risk of ipsilateral stroke when compared with medical therapy alone. However, medical treatment of cardiovascular disease has improved significantly over the past 2 decades, and this has, in turn, resulted in a decline of the stroke risk in patients with asymptomatic carotid artery stenosis treated medically. This improvement in medical therapy casts doubts on the effectiveness of large-scale invasive treatment in patients with asymptomatic carotid artery stenosis. Several studies have been conducted to identify possible subgroups of patients with asymptomatic stenosis who are at higher risk of stroke in order to maximize the potential benefits of invasive treatment. Ongoing large-scale trials comparing best current medical therapy to available invasive treatments, such as carotid endarterectomy and carotid artery stenting, are likely to shed some light on this debated topic in the near future. In this review, the authors summarize the current controversy surrounding the ideal management of asymptomatic carotid artery stenosis.


2000 ◽  
Vol 28 (6) ◽  
pp. 448-453
Author(s):  
Chie YAMANAKA ◽  
Takeshi SHIMA ◽  
Masahiro NISHIDA ◽  
Kanji YAMANE ◽  
Takashi HATAYAMA ◽  
...  

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