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

作　　者：何京川[1] 翟翔[2] 米悦[2] 张金玲[2] 刘钢[2] 

机构地区：[1]天津医科大学研究生院,天津300071 [2]天津市环湖医院耳鼻咽喉科

出　　处：《听力学及言语疾病杂志》2015年第5期477-481,共5页Journal of Audiology and Speech Pathology

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。Objective To study the characteristics of vestibular autorotation test （VAT） in patients with the posterior circulation transient ischemic attacks（PCTIA） ,further reveal the pathogenesis vestibular function damage because of PCTIA .Methods VAT was performed on 41 patients with posterior circulation transient ischemic at‐tacks（PCTIA group） and 30 healthy controls（control group） .Parameters analyzed included gains ,phases and a‐symmetry of VAT .The positive result of the test could be defined if any of the paramaeters was abnormal .Results In the PCTIA group and control group ,gains were enhanced without being reduced as showed in 25 （62 .5% ,25/40） cases and 5（16 .7% ） ,respectively （χ2 =7 .09 ,P〈0 .01） ,gains were enhanced with reduced as showed in 10（25% ） cases and 0（0% ） ,respectively （χ2 =8 .78 ,P〈0 .01） .Conclusion The results of VAT in patients with the PCTIA can show gains enhanced with reduced in different frequency .VAT can provide valuable reference on positioning as‐sessment of vestibular system damage in patients with PCTIA .

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 

分 类 号：R764.3[医药卫生—耳鼻咽喉科]