What are ischemic cerebrovascular diseases?

Ischemic cerebrovascular disease includes transient ischemic attack and cerebral infarction. Cerebral infarction is also called ischemic stroke, which refers to the ischemic necrosis or softening of localized brain tissue caused by cerebral blood circulation disorder, ischemia and hypoxia. Cerebral infarction can be divided into the following types according to different causes: large artery atherosclerosis type, cardiogenic embolism type, small artery occlusion type, other clear causes or unknown causes type, among which large artery atherosclerosis type and cardiogenic embolism type are most common. Atherosclerosis type, also known as cerebral thrombosis, cardiogenic embolism type, also known as cerebral embolism, is the most common clinical type of cerebral infarction. Transient ischemic attack is normally considered as a precursor symptom of cerebral infarction.