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目的探讨短暂性脑缺血发作(TIA)与颅内外血管狭窄的关系。方法应用颈动脉超声、经颅彩色多普勒超声及心脏超声检查,对51例急性期TIA患者进行检查,按照TIA发作次数分为单发组与频发组,并对其中46例有血管狭窄的患者行数字减影脑血管造影(DSA),比较二组间临床特征与血管狭窄或闭塞的发生情况。结果 51例患者中大动脉狭窄性TIA 38例(74.5%),血管重度狭窄多见于频发组。结论颅内外血管狭窄是发生TIA的重要因素,频发TIA与血管重度狭窄相关。
Objective To investigate the relationship between transient ischemic attack (TIA) and intracranial and extracranial vascular stenosis. Methods Fifty-one patients with acute TIA were examined by carotid ultrasonography, transcranial color Doppler ultrasonography and echocardiography. According to the number of TIA episodes, they were divided into single-episode group and frequent-episode group, and 46 of them had vascular stenosis Of patients underwent digital subtraction angiography (DSA). The clinical characteristics and the occurrence of stenosis or occlusion of the two groups were compared. Results Thirty-eight cases (74.5%) had stenosis of large artery in 51 cases. Serious stenosis was more common in the frequent group. Conclusion Extracranial and extracranial vascular stenosis is an important factor in the occurrence of TIA. Frequent TIA is associated with severe vascular stenosis.