颈内动脉TIA患者脑动脉狭窄的分布特征

目的探讨不同年龄颈内动脉短暂性脑缺血发作（TIA）患者动脉狭窄的分布特征。方法分析研究我院收治的173例颈内动脉TIA发作患者的脑血管造影资料,将存在动脉狭窄的患者按年龄段分为青年组、中年组和老年组,对不同年龄段患者脑动脉狭窄情况进行对比研究。结果 173例中,154例（89.0%）检出存在不同程度的脑动脉狭窄;病变血管共304支,其中颅内动脉狭窄212支（69.7%）,颅外动脉狭窄92例（30.3%）,颅内动脉狭窄发生率明显高于颅外动脉（P〈0.05）。青年组以单纯颅内动脉狭窄为主,占79.3%;中年组以单纯颅内动脉狭窄和颅内、外动脉狭窄并发为主,占90.0%;老年组以单纯狭窄为主,占86.6%。3组间单纯颅内动脉狭窄发生率未见明显差异（P〉0.05）,单纯颅外动脉狭窄发生率中年组高于青年组,老年组高于中年组（P〈0.05）,中年组颅内、外动脉狭窄并存发生率明显高于青年组和老年组（P〈0.05）。结论不同年龄TIA患者脑动脉狭窄的空间分布明显不同,DSA检查有助于明确血管性病变原因。

Distribution features of cerebral artery stenosis of patients with internal carotid artery TIA

Objective To explore the distribution features of cerebral artery stenosis of patients with internal carotid artery transient ischemic attack（TIA）patients at different ages.Methods According to the cerebral angiography data of 173 internal carotid artery TIA patients who received treatment in our hospital,they were divided into three groups according to their ages,i.e.,youth group,middle-aged group,and senile group and then,the condition of the cerebral artery stenosis of three groups were analyzed and compared one another.Results Among the 173 patients,154 ones（89.0%） were found having cerebral artery stenosis at different degrees;there were totally 304 branches of vascular lesion,including 212 branches of intracranial artery stenosis（64.8%） and 92 branches of extracranial artery stenosis（30.3%）,which showed that the incidence of intracranial artery stenosis was significantly higher than that of extracranial artery（P〈0.05）.In the youth group,simple intracranial artery stenosis is dominant,accounting for 79.3%;in the middle-aged group,simple intracranial artery stenosis complicated with extracranial arterial stenosis is dominant,concurring,accounting for 90.0%;in the senile group,simple stenosis is dominant,accounting for 86.6%.Among all three groups,the incidences of simple intracranial artery stenosis had no significant difference（P〉0.05） one another,while the incidence of simple extracranial artery stenosis in the middle-aged group was higher than that in the youth group,and in the senile group was higher than in the middleaged group（P〈0.05）,and the incidences of intracranial and extracranial arterial stenosis in the middle-aged group were significantly higher than those in the youth and senile groups（P〈0.05）.Conclusion For TIA patients at different ages,the spatial distribution of cerebral artery stenosis is obviously different,and DSA examination is helpful for making clear the causes to vascular lesion.