Whether it is necessary to implant a stent in the carotid artery after the heart has been stented depends on the degree of carotid artery disease, and patients with severe stenosis can be implanted with a stent. Cardiac stents are mainly used for the treatment of coronary artery disease, and there is no direct relationship with the need for carotid artery stenting. Patients with carotid artery lesions should undergo carotid angiography to understand the severity of the carotid arteries. If there is severe stenosis accompanied by corresponding symptoms, a stent can be implanted to improve the cerebral artery blood supply. Patients with mild to moderate stenosis usually do not need stent implantation. Stenting is mainly used for severe arterial stenosis, regardless of the heart or carotid vessels. Before implanting a stent, an arterial angiogram should be performed to determine the severity of the condition, and treatment should be carried out under the guidance of a physician. It is recommended to go to a regular hospital to avoid causing complications.