A Cost-Effectiveness Analysis of Carotid Artery Stenting Compared With Endarterectomy
Carotid artery, stenosis, cost-benefit analysis, stroke
Endarterectomy and angioplasty with stenting have emerged as 2 alternative treatments for carotid artery stenosis. This study's objective was to determine the cost-effectiveness of carotid artery stenting (CAS) compared with carotid endarterectomy (CEA) in symptomatic subjects who are suitable for either intervention. A Markov analysis of these 2 revascularization procedures was conducted using direct Medicare costs (2007 US$) and characteristics of a symptomatic 70-year-old cohort over a lifetime. In the base case analysis, CAS produced 8.97 quality-adjusted life-years, compared with 9.64 quality-adjusted life-years for CEA. The incremental cost of stenting was $17,700, and thus CAS was dominated by CEA. Sensitivity analyses show that the long-term probabilities of major stroke or mortality influenced the results. In the base case analysis, CEA for patients with symptomatic stenosis has a greater benefit than CAS, with lower direct costs. With 59% probability, CEA will be the optimal intervention when all of the model assumptions are varied simultaneously.
Digital Object Identifier (DOI)
Citation / Publisher Attribution
Journal of Stroke and Cerebrovascular Diseases, v. 19, issue 5, p. 404-409
Scholar Commons Citation
Young, Kate C.; Holloway, Robert G.; Burgin, W. Scott; and Benesch, Curtis G., "A Cost-Effectiveness Analysis of Carotid Artery Stenting Compared With Endarterectomy" (2010). Neurology Faculty Publications. 54.