Evans W E, Hayes J P
Vascular Services, St. Anthony Medical Center, Columbus, OH 43205.
J Vasc Surg. 1987 Dec;6(6):548-52.
Eighty-three patients, 43 women and 40 men, with hemispheric transient ischemic attacks (TIAs) and normal angiograms were studied. Fifty-two of the patients had a single episode of transient ischemia, whereas 31 had multiple episodes prompting initial evaluation. Follow-up ranging from 3 to 132 months was obtained for all patients. In this period, six patients suffered a cerebrovascular accident and five had further hemispheric TIAs. These results are in contrast to our earlier data, which suggested a benign prognosis in this group of patients. Results of this updated study show that the prognosis of patients with hemispheric TIAs and normal angiograms is not so benign as originally reported. Those patients with multiple events before initial evaluation are at increased risk of subsequent cerebrovascular accident or TIA. Close observation of this group of patients is recommended.
对83例半球短暂性脑缺血发作（TIA）且血管造影正常的患者进行了研究，其中43例为女性，40例为男性。52例患者仅有单次短暂性缺血发作，而31例有多次发作，这促使他们进行了初步评估。所有患者的随访时间为3至132个月。在此期间，6例患者发生了脑血管意外，5例出现了进一步的半球TIA。这些结果与我们早期的数据相反，早期数据表明该组患者预后良好。这项更新研究的结果显示，半球TIA且血管造影正常的患者预后并不像最初报道的那样良好。那些在初次评估前有多次发作的患者，随后发生脑血管意外或TIA的风险增加。建议对该组患者进行密切观察。
