后循环短暂性脑缺血发作患者前庭自旋转试验特征

The Characteristics of Vestibular Autorotation Test in Patients with the Posterior Circulation Transient Ischemic Attacks

何京川;翟翔;米悦;张金玲;刘钢;

1:天津医科大学研究生院

2:天津市环湖医院耳鼻咽喉科

摘要
目的分析后循环短暂性脑缺血发作(posterior circutalion transient ischemic attacks,PCTIA)患者前庭自旋转试验(vestibular autorotation test,VAT)的特征及临床意义,探讨其前庭功能损伤的可能机制。方法对41例后循环短暂性脑缺血发作患者(PCTIA组)和30例正常人(对照组)进行VAT检查,以水平、垂直测试的增益、相移、水平非对称指标出现一项或一项以上异常评定为试验阳性。结果 PCTIA组和对照组VAT测试前庭功能高频中枢性损害(增益增高)者分别为25例(62.5%,25/40,有1例未完成检查)和5例(16.7%,5/30),差异有统计学意义(χ2值=7.09,P<0.01);PCTIA组和对照组VAT测试前庭功能高频中枢性和外周性损害(不同频率段既有增益增高又伴有增益减低)并存者分别为10例(25%)和0例(0%),差异有统计学意义(χ2值=8.78,P<0.01)。结论 PCTIA患者VAT检查可表现为单纯的增益增高或不同频率段既有增益增高又伴有增益减低,可提示其病变位于中枢或外周,VAT对PCTIA患者前庭系统损伤的定位评估有参考意义。
关键词
前庭自旋转试验;后循环短暂性脑缺血发作;后循环缺血
基金项目(Foundation):
作者
何京川;翟翔;米悦;张金玲;刘钢;
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