CAJ | 학술논문

目的：通过全脑血管造影结果，观察短暂性脑缺血发作（transient ischemic attacks，TIA）患者脑动脉狭窄的分布特征及侧支循环情况。方法选择行全脑血管造影检查的120例TIA患者，观察分析其是否存在脑血管狭窄、狭窄程度、狭窄分布特征以及侧支代偿情况。结果造影正常者37例（30.8%），存在脑动脉狭窄或完全闭塞的患者83例（69.2%）。在83例全脑血管造影检查阳性的患者中，前循环受累47例，占56.6%；后循环受累36例，占43.4%。轻中度狭窄的侧支循环发生率（71.4%）和重度狭窄及完全闭塞的侧支循环发生率（41.3%）比较，差异有统计学意义（P＜0.05）。侧支循环的代偿主要通过Willis环途径。结论脑血管狭窄是TIA的主要原因之一，侧支循环最常见的途径是Willis环途径，血管狭窄越严重则越可能建立侧支循环。
목적：통과전뇌혈관조영결과，관찰단잠성뇌결혈발작（transient ischemic attacks，TIA）환자뇌동맥협착적분포특정급측지순배정황。방법선택행전뇌혈관조영검사적120례TIA환자，관찰분석기시부존재뇌혈관협착、협착정도、협착분포특정이급측지대상정황。결과조영정상자37례（30.8%），존재뇌동맥협착혹완전폐새적환자83례（69.2%）。재83례전뇌혈관조영검사양성적환자중，전순배수루47례，점56.6%；후순배수루36례，점43.4%。경중도협착적측지순배발생솔（71.4%）화중도협착급완전폐새적측지순배발생솔（41.3%）비교，차이유통계학의의（P＜0.05）。측지순배적대상주요통과Willis배도경。결론뇌혈관협착시TIA적주요원인지일，측지순배최상견적도경시Willis배도경，혈관협착월엄중칙월가능건립측지순배。
Objective To observe the distribution characteristics of cerebral artery stenosis and the status of collateral circulation in patients with transient ischemic attack (TIA) through cerebral angiography. Methods Cerebral angiography was performed in 120 patients with TIA to observe cerebrovascular stenosis, stenosis degree,stenosis distribution and collateral compensatory circulation. Results Among the 120 patients,cerebral angiography showed normal arteries in 37(30.8%),and cere-bral artery stenosis or occlusion in 83 (69.2%).Among the 83 patients, anterior circulation dysfunction occurred in 47(56.6%),and posterior circulation dysfunction in 36(43.4%). The incidence of collateral circulation following mild-to-moderate stenosis was significantly higher than that following severe stenosis and occlusion(71.4% vs 41.3%,P<0.05). The circle of Willis was the main collateral pathway. Conclusion Cerebrovascular stenosis is one of the main causes of TIA and the circle of Willis is the most common pathway of collateral circulation. The more serious vascular stenosis is more likely to establish collateral circulation.