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目的：观察瞬目反射（ＢＲ）、脑干听觉诱发电位（ＢＡＥＰ）、经颅多普勒超声（ＴＣＤ）对椎基底动脉供血不足（ＶＢＩ）的诊断意义。方法：对４１例已经临床确诊的ＶＢＩ病人在间歇期进行ＢＲ、ＢＡＥＰ及ＴＣＤ检查。结果：ＴＣＤ、ＢＲ、ＢＡＥＰ异常率分别为８３％、８０％、６８％。ＢＲ提示脑桥损害１例、延髓损害１５例、广泛性脑干损害１７例；ＢＡＥＰ发现内耳听力减退２０例、脑干病变１３例；ＴＣＤ发现多血管流速异常１４例、一支流速改变１６例，有或伴有血管张力异常１３例。结论：由于ＢＲ、ＢＡＥＰ反射路径不同，检测结果不尽一致。联合检查有助于对病损部位进行定位。ＴＣＤ则有助于定性诊断
Objective: To observe the diagnostic significance of blinking (BR), brainstem auditory evoked potentials (BAEP) and transcranial Doppler ultrasound (TCD) on vertebrobasilar insufficiency (VBI). Methods: 41 cases of clinically diagnosed VBI patients underwent BR, BAEP and TCD during the interval. Results: The abnormal rates of TCD, BR and BAEP were 83%, 80% and 68% respectively. BR prompted a pontine lesion in 1 case, medullary injury in 15 cases, extensive brain stem damage in 17 cases; BAEP found that hearing loss in the inner ear in 20 cases, brain stem lesions in 13 cases; TCD found abnormal vascular flow in 14 cases, a change in flow rate in 16 cases, Thirteen cases had or accompanied with abnormal vascular tone. Conclusion: Due to the different reflection paths of BR and BAEP, the test results are not consistent. Joint examination helps to locate the lesion. TCD is helpful for qualitative diagnosis