头昏和眩晕患者的脑诱发电位研究

A Study on Cerebral Evoked Potentials in Patients with Dizziness and Vertigo

本文应用 BAEP、VEP、SISEP 3种检查方法,对204例官能性头昏、眩晕患者作了总计329项(次)的检查,总异常率占54%。作者认为头昏或眩晕患者作诱发电位检查,对脑动脉硬化及颈椎病所致的脑供血不足具有早期诊断及预防治疗的意义.其中,头昏患者应首选 SLSEP 检查,眩晕患者则应首选 BAEP。研究结果表明,大脑后动脉缺血可致 VEP 异常;大脑中动脉及颈动脉缺血可致 SLSEP 异常;椎基底动脉缺血可致 BAEP异常。异常率均随年龄增大而增高,并与病程延长成正比,男性异常率高于女性。

BAEP,VEP,and SLSEP examinations were made in 204 patients(male 89, female 115,average age 48)who had suffered functional dizziness and vertigo for 1 day to 15 years.329 indexes were examined and the total abnormal rate was 54%.It was concluded that for the patients with dizziness and vertigo the evoked potential examination was of significance in early diagnosing and preventing the cerebral ischemia caused by cerebral arteriosclerosis and cervical spondylopathy.The patients with dizziness should take SLSEP examination first and those with vertigo BAEP first. Abnormality in VEP was caused by posterior cerebral artery ischemia,in SLSEP by middle cerebral artery and carotid ischemia,and in BAEP by vertebrobasilar ischemia. The abnormal rate went up as the patients'age increased and was proportional to the course of disease.And it was higher in the male patients than in the female.