Cerebral vasospasm

Cerebral angiospasm refers to atherosclerotic plaques in the internal carotid artery or vertebral-basal artery system that narrow the blood vessel lumen and vortex flow. When the eddy current is accelerated, the vascular wall is stimulated to cause vascular spasm and a transient ischemic attack occurs. The symptoms disappear when the vortex is decelerated. However, some scholars believe that due to the specificity of the cerebral vascular structure, spasm is not easy to occur. However, most scholars believe that vasospasm can undoubtedly occur in the internal carotid artery and the cerebral arterial ring. Aortic spasm can be seen in cerebral angiography; subarachnoid hemorrhage can cause extensive and focal cerebral vasospasm; When the aorta is operated, the diameter of the artery can be noticeably reduced. Therefore, it can also cause cerebral arterial spasm and lead to transient ischemic attack under the stimulation of persistent hypertension, local damage or fine particles.