Role of carotid endarterectomy in asymptomatic carotid stenosis: a Veterans Administration Cooperative Study.


Phase N/A Results


The combined incidence of ipsilateral neurologic events was 8.0 percent in the surgical group and 20.6 percent in the medical group (P<0.001), giving a relative risk (for the surgical group vs. the medical group) of 0.38 (95 percent confidence interval, 0.22 to 0.67).