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颅内动脉痉挛的含义包括:(1)脑血管造影可见一根或多根脑底部大血管的管腔明显变窄。这由于血管损伤后的反应,使动脉壁内的平滑肌收缩及沿动脉壁内面的形态学发生了改变;(2)蛛网膜下腔出血后出现迟发性神经缺失症状。此种症状认为是由于部分脑组织缺血或梗塞所致;(3)上述两种情况并存(症状性痉挛)。颅内动脉痉挛并不只是发生在动脉瘤破裂后蛛网膜下腔出血,但这是最典型的发生条件,并非所有动脉瘤出血的病人都会发生动脉狭窄,都会出现迟发性神经功能缺失,也并非所有动脉狭窄的病
The meaning of intracranial arterial spasm include: (1) Cerebral angiography can be seen one or more vessels at the bottom of the cerebral vessels significantly narrowed. This is due to vascular injury after the reaction, the smooth muscle contraction of the artery wall and the morphology along the inner wall of the artery has changed; (2) subarachnoid hemorrhage delayed neurological symptoms. This symptom is thought to be due to ischemia or infarction of some brain tissues; and (3) the coexistence of the above two conditions (symptomatic spasms). Intracranial arterial spasm does not occur only in subarachnoid hemorrhage after aneurysm rupture, but this is the most typical condition, not all patients with aneurysm hemorrhage will have arterial stenosis, there will be delayed neurological deficit, also Not all arterial stenosis disease