The study compared the effectiveness of intensive treatment and revascularization in patients with a high degree of asymptomatic carotid stenosis. In the group with carotid stenting, the 4-year incidence of death or stroke was 2.8%, in the group with only intensive treatment, 6.0%. Stenting along with intensive care resulted in a lower risk of death or stroke compared with intensive care alone. However, carotid endarterectomy along with intensive care did not significantly reduce the risk of death or stroke compared with intensive care alone. The study included 1245 patients in the stenting group and 1240 patients in the endarterectomy group. The primary outcome was the composite criterion of death or stroke within 44 days and contralateral ischemic stroke within 4 years. The results show that stenting is more effective than intensive treatment alone in patients with a high degree of asymptomatic carotid stenosis.