Analysis Of Cerebral Angiography In261Cases Of Ischemic Cerebrovascular Disease

Objective:To investigate the distribution characteristics and severity of cerebral artery stenosis in patients with ischemic cerebrovascular disease (ICVD),ischemic cerebrovascular disease risk factors and common sense to open collateral circulation ischemic cerebrovascular disease.Methord:The data of cerebral angiography in261patients with ischemic cerebrovascular disease who performed cerebral angiography were analyzed retrospectively.They were divided into young (aged6-44years), middle-aged (aged45-59years), and elderly (aged=60years) groups according to their ages.Results:70.11%patients had cerebral artery stenosis or occlusion, and29.89%patients had no cerebral artery stenosis. lntracranial artery stenosis was40.98%, extracranial artery stenosis was32.79%, and extra-and intracranial artery stenosis was26.23%.(1), The proportion of intracranial artery stenosis in the young group (71.43%) was significantly higher than that in the middle-aged group (33.93%, P<0.01) and that in the elderly group (26.92%, P<0.01). The proportion of extra-and intracranial artery stenosis in the elderly group (37.18%) was significantly higher than that in the young group (16.33%, P<0.05) and that in the middle-aged group (19.64%, P<0.05).(2)、In the261cases,325lesions were found, including237stenoses and88occlusions. The proportion of occlusions in the young group (39.77%) was significantly higher than that in the middle-aged group (19.63%, P<0.01) and that in the elderly group (22.38%, P<0.01).(3)、The patients with cerebral infarction were117, and the proportion of intracranial artery stenosis was36.75%, while extracranial artery stenosis was35.90%, and the extra-and intracranial artery stenosis was27.35%. The patients with transient ischemic attack (TIA) were66, and the proportion of intracranial artery stenosis was48.49%, while extracranial artery stenosis was27.27%, and the extra-and Intracranial artery stenosis was24.24%; there are no significant difference between two groups in the distribution of vascular stenosis (P>0.05).(4), In cerebral infarction group220lesions were found, and the proportion of mild-moderate stenosis was44.09%, while severe stenosis was26.36%, and the occlusions was29.55%. In TIA group105lesions were found, and the proportion of mild-moderate stenosis was66.67%, while severe stenosis was11.43%, and the occlusions was21.90%. The difference of sevetity of artery stenosis between TIA group and cerebral infarction group was distinct (P<0.01).(5), There were73patinets who suffered Severe stenosis or occlusion,61patients had collateral circulation,14cases(22.95%)with only ACOA open,20cases(32.79)with only PCOA open,27cases(44.26%) with ACOA and PCOA open,6cases with other collateral circulation.Conclusion:Cerebral artery stenosis or occlusion is important ischemic cerebrovascular disease etiology.There are differences between the stenosis distribution in ICVD patients with different ages. The occlusions in young group are more than middle-aged and elderly group. No obvious difference is found between cerebral infarction and TIA patients with stenosis distribution, the severity of the stenosis of cerebral infarction group and the TIA group have obvious difference. In cerebral artery stenosis or occlusion of collateral circulation in patients with decompensated whether to establish an important role in the clinical manifestations.