22例暂时性脑缺血发作(IIA)患者,男9例,女13例。年龄在50岁以内15例,30岁以内6例,20岁以内4例。临床表现以一时性黑朦、偏瘫或感觉异常,症状在24小时内消失为特征。排除了脑血管病的迹象,脑扫描未见异常,无心源性栓子,无动脉炎或胶原性疾病的证据,无偏头痛病史。2例电子显微镜未发现改变。作血凝研究,并观察1～5年,唯一发现是:血小板粘附性和凝集性增高(9例),仅有粘附性增高10例,凝聚性增高3例。用抗血小板药物治 22 patients with transient ischemic attack (IIA), 9 males and 13 females. 15 cases were under 50 years old, 6 cases were under 30 years old and 4 cases were under 20 years old. Clinical manifestations of transient darkness, hemiplegia or sensory abnormalities, the symptoms disappear within 24 hours is characterized. No evidence of cerebrovascular disease, no abnormal brain scans, no evidence of cardioembolism, no arteritis or collagen disease, and no history of migraine. Two cases of electron microscopy did not find any change. For hemagglutination study and observed 1 to 5 years, the only findings are: platelet adhesion and agglutination increased (9 cases), only the adhesion increased in 10 cases, cohesion increased in 3 cases. With anti-platelet drugs