椎基底动脉供血不足患者的脑干听觉诱发电位与经颅多普勒检查

目的 :探讨椎基底动脉供血不足 (VBI)患者的脑干听觉诱发电位 (BAEP)与经颅多普勒(TCD)的相关性。方法 :对 5 8例临床诊断VBI眩晕的患者及 30例非VBI眩晕的患者进行BAEP和TCD检测。结果 :VBI组BAEP异常率为 5 9% ,TCD异常率为 6 1% ,χ2 检验差异无显著意义 :非VBI组BAEP异常率 8% ,TCD异常率为 47% ,χ2 检验差异有显著意义。VBI组BAEP及TCD皆异常者为 6 4/116 ,皆正常者为 2 3/116 ,两者占 75 % ;非VBI皆异常者为 4/6 0 ,皆正常者为 32 /6 0 ,两者占 6 0 %。结论 :结合BAEP及TCD检查结果有助于VBI的诊断 ,而单独的TCD结果不足以作为诊断依据。

Detection of brain stem auditory evoked potentials and transcranial doppler in patients with vertebrobasilar insufficiency

Objective:To investigate the correlation between brain stem auditory evoked potentials (BAEPs) and transc ranial doppler(TCD) examination in patients with vertebrobasilar ischemia(VBI).Methods:Sixty eight patients with VBI and 30 non VBI patients were studied by BAEPs and TCD.Results:The abnormality rate of BAEP was 58 6%, and TCD 61 2%. No significant difference by Chi square test was noted between the abnormality of BAEPs and TCD, while in non VBI group the abnormality rate of BAEP was %, TCD 47%. Both BAEP and TCD were abnormal in 64 patients with VBI(55.1%), and 5 ones with non VBI(8.3%). Both BAEP and TCD were normal in 23 patients with VBI(19.8%),and in 32 ones with non VBI(60%). Conclusion:Combination of BAEP and TCD might increase the value of diagnosing VBI. The results of TCD alone can not be a considerable diagnostic basis for VBI.