短暂性脑缺血发作126例的临床与CT研究

目的：探讨短暂性脑缺血发作（ＴＩＡ）患者脑梗死的发生率及可能相关的因素。方法：对１２６例颈内动脉系统ＴＩＡ的临床与ＣＴ资料进行分析。结果：脑ＣＴ扫描后发现７２例显示梗死灶，占５７．１％。其中：单发新鲜梗死灶３８例，多发新鲜梗死灶１８例，新旧梗死灶并存１６例。以腔隙性梗死灶最为多见（９７．５％），多数病灶与本次ＴＩＡ症状无关，与本次ＴＩＡ临床症状相对应的责任病灶仅占２６．４％。局限性脑功能障碍持续的

Study on the relationship between clinical manifestation and CT features in 126 cases of transient ischemic attacks

Objective: To investigate the incidence of cerebral infarction and its related factors in patients withtransient ischemic attacks (TIA). Method: Clinical and CT data of 126 cases carotis interna artery system TIA wereanalysed. Results: Cerebral infarction was found by CT scan in 72 cases of 126 patients with TIA (57. 1% ). Amongthese 72 cases, 38 cases were found to have fresh mono-infarct focus, 18 cases with fresh multi-infarct sites, and 16cases with both. Lacuna infarctions were most frequently found (97. 5%) - Only 26. 4% of infarcted focus responsiblefor the TIA. The longer the duration of the local cerebral dysfunction persisted,the higher the incidence of cerebral infarction would be. The possibility of suffering from cerebral infarction in those who had symptoms lasted for morethan 30 minutes and 60 minutes was 8. 5 and 8.6 times respectively as that in patients who had symptoms for less than30 minutes. Most patients (89%) whose symptoms lasted for less than 30 minutes had no infarct focus. Conclusion:The traditional concept of TIA is probably inadequate, and diagnosis of TIA in patients with symptoms last for morethan 30 minutes should be made cautiously