The distribution of intra and extracranial artery stenosis in different aged patients with ischemic cerebrovascular disease

Objective:To provide reference for the therapy and the prevention of cerebrovascular disease , we investigated the distribution of cerebral artery stenosis in different aged patients with ischemic cerebrovascular disease(ICVD). Methods:108 of 142 patients examined with digital subtraction angi-ography had cerebral artery stenosis. The 108 patients were divided into young-aged group (15-44) years, middle-aged group(45-59) years and old-aged group(≥60) years. The distribution of cerebral artery stenosis with different age was analyzed. Results:The frequency of intracranial artery stenosis was 69. 4% , and that of extracranial artery was 66. 7% in 108 patients with cerebral artery stenosis. In young-aged group, the proportion of simplex intracranial artery stenosis was high, and middle cerebral artery was affected frequently. In middle-aged and old-aged group, the proportion of coexistence of intracranial and extracranial artery stenosis was higher. Compared with the frequency of stenosis, there was significant difference between three groups, and no significant difference between middle-aged and old-aged group. We found the correlation between the numbers of extracranial artery stenosis and age. The numbers of extracranial artery stenosis increased with age (P0. 01). There was no correlation between the numbers of intracranial artery stenosis and age. Conclusion:The distribution of cerebral artery stenosis varied with different age in patients with ICVD. The numbers of extracranial artery stenosis increased with age.