Effect of stenting on patients with chronic internal carotid artery occlusion.

CAS was superior to drug therapy in achieving better functional outcomes in patients with chronic internal carotid artery occlusion. However, CAS was not associated with a statistically significant reduction in cerebrovascular events or mortality. Larger and randomized clinical trials are required to ascertain the long-term benefits of CAS in patients with chronic internal carotid artery occlusion.