椎基底动脉供血不足性瞬目反射与脑干听觉诱发电位的对比研究  

A comparative study of blink reflex and brainstem auditory evoked potentials on vertigo caused by vertebrobasilar ischemia

作　　者：罗宇 游国雄 王者晋[1,2] 井晓蓉 

机构地区：[1]武警重庆总队医院内二科 [2]第四军医大学附属二院神经内科

出　　处：《中风与神经疾病杂志》1998年第3期145-147,共3页Journal of Apoplexy and Nervous Diseases

摘　　要：目的探讨ＢＲ对ＶＢＩ的诊断价值，并与ＢＡＥＰ作对比。方法用表面电极刺激三叉神经眶上支，诱发双侧眼轮匝肌收缩产生瞬目动作，用肌电图仪描记眼轮匝肌电位变化。结果ＢＲ检查脑干功能障碍为８０．５％，ＢＡＥＰ检查脑干功能障碍为３１．７％，二者联合检查阳性率为８７．８％。结论ＢＲ检查对ＶＢＩ早期诊断是一项敏感而有定位价值的非创伤性检查，对疗效观察和评估预后也有价值，与ＢＡＥＰ共同检查可提高ＶＢＩ的早期诊断率，并有助于定位诊断。Objective To study the diagnostic value of blink reflex(BR) on vertebrobasilar ischemia (VBI) as compared with brainstem auditory evoked potentials.Methods By stimulating the ophthalmic branch of trigeminal nerve,the blink action was induced by the contraction of bilateral mucalaris obilocalasis oculi which was recorded by EMG with a superficial electrode on the muscle.Results There was a significant difference of abnormal rates between BR and BAEP examination,the former was 80.5% and the latter 31.7%.The total abnormality rate of BR and BAEP reached to 87.8%.Conclusion BR is a sensitive,noninvasive laboratory technique for the early diagnosis of VBI with localizing significance.Therefore,a combined application of BR and BAEP would increase the rate of early diagnosis of VBI and helpful for the topographic purpose.

关 键 词：椎基底动脉 供血不足 瞬目反射 BAEP 

分 类 号：R743.04[医药卫生—神经病学与精神病学] R741.044[医药卫生—临床医学]