New guidelines from the American Academy of Neurology support the use of carotid endarterectomy for patients with severe to moderate stenosis to reduce stroke risk, but not for asymptomtic patients with less than 50% blockage (Chaturvedi et al. Neurology. 2005;65:794-801). However, the recommendations come just as a new study supports the argument that a less invasive approach using carotid artery stenting may be a viable and perhaps superior alternative for certain patients.
Mitka M. Carotid Artery Surgery Guidelines Updated. JAMA. 2005;294(23):2955–2956. doi:10.1001/jama.294.23.2955