Carotid stenting does not have a fixed duration of maintenance. After undergoing carotid stenting, you will need to go to the hospital for regular follow-ups, which are performed to determine the patency rate of the stent. Carotid stenting is a method of endovascular treatment for severe internal carotid artery stenosis. The 5-year patency rate of carotid artery stenting is as high as 80% or more. However, the maintenance time of carotid artery stenting varies from patient to patient, so there is no fixed maintenance time for carotid artery stenting. After a strong arterial stent procedure, patients are advised to go to the hospital for a relevant examination, the purpose of which is to determine the patency rate of the carotid stent. If the patency rate of the carotid stent is relatively good, it can continue to be used. Since the placed carotid stent is difficult to replace, if restenosis occurs, it is necessary to remove the plaque together with the stent by stripping, or put in a new stent.