138例短暂性脑缺血发作患者脑血管造影分析

目的 通过数字减影脑血管造影检查,分析短暂性脑缺血发作(TIA)患者脑动脉狭窄程度和分布,探讨TIA与脑动脉狭窄的相关性.方法 138例符合TIA诊断标准的患者,行数字减影选择性全脑血管造影,明确有无脑动脉狭窄、狭窄程度及分布.结果 138例患者中有116例共185支血管狭窄.其中闭塞血管48支,占25.9％,重度狭窄血管42支,占20.9％,中度狭窄血管52支,占32.8％,轻度狭窄血管43支,占25.3％；颅外段狭窄占60.2％,颅内段占39.8％；颅外段狭窄动脉中以颈内动脉颅外段最常见,占28.9％,而颅内段狭窄则以大脑中动脉最常见,占19.9％.结论 颅内外脑动脉粥样硬斑块形成伴狭窄是TIA的主要发病原因,数字减影选择性全脑血管造影可以确定TIA患者颅内外脑动脉粥样硬斑块形成及狭窄情况,对TIA治疗方案的选择起非常重要作用.

Analysis of cerebral angiography in 138 patients with transient ischenfic attack

Objective To investigate the correlation between transient ischemic attack （TIA） and the degree and distribution of intracranial or extracranial arteriostenosis through digital subtraction angiography （DSA）. Methods A total of 138 patients with TIA received DSA for the confirmation of cerebral artery stenosis and its degree and distribution. Results All 185 arteries of 116 cases presented cerebral artery stenosis including 48 （25.9%） eases of total occlusion, 42 （20.9%） eases of more than 70% stenosis, 52 （32.8%） eases of 50% -69% stenosis and 43 （25.3%） cases of less than 50% stenosis; 60. 2% were extracranial arteriostenosis, mostly located in extracranial segment of internal carotid artery （28. 9% ）, and 39. 8% were intracranial arteriostenosis, mostly located in middle cerebral artery （ 19. 9% ）. Conclusion The atheromatous plaque associated with cerebral arteriostenosis is the main cause of TIA. DSA can help to detect the intracranial or extmeranial arteriostenosis and its degree in the patients with TIA. It plays an important role in the therapy choice of TIA.