脑干听觉诱发电位在后循环梗死中的应用价值

The applied value of BAEP in posterior circulation infarction

目的探讨脑干听觉诱发电位(BAEP)对不同部位后循环梗死的应用价值。方法对83例后循环梗死患者在发病后1周内经临床及MRI检查明确诊断,根据梗死的部位分为脑干梗死32例,小脑梗死24例,枕叶梗死27例。在发病后1周内进行首次BAEP检查,之后在1、3、6个月时再次进行BAEP检查。并与对照组25例进行对比。结果脑干梗死者在发病1周和1、3个月BAEP与对照组相比差异有统计学意义(P<0.05)。主要异常表现为Ⅲ、Ⅴ波的潜伏期(PL)和Ⅲ～Ⅴ、Ⅰ～Ⅴ波的峰间潜伏期(IPL)延长。发病后6个月时BAEP与对照组相比差异无统计学意义(P>0.05)。小脑梗死、枕叶梗死在发病后1周和1、3、6个月BAEP与对照组相比差异无统计学意义(P>0.05)。结论 BAEP对后循环脑干梗死的应用价值较大,并可随访观察预后。

Objective To investigate the applied value of brainstem auditory evoked potential（BAEP） in different position of posterior circulation infarction.Methods 83 patients with posterior circulation infarction were diagnosed through clinic and MRI within one week after attack.There were 32 brain-stem infarction patients,24 cerebellum infarction patients and 27 occipital lobe infarction patients among the total.They were checked with BAEP on 1 week,1 month,3 month and 6 month after attack compared with 26e control groups.Results The BAEP of brain-stem infarction patients had significant difference（P0.01） versus the control groups on 1 week,1 month and 3 month.The main abnormal findings of BAEP included prolonged peak latency（PL）of Ⅰ,Ⅲ,Ⅴ waves and prolonged interpeak Iatency（IPL）of Ⅰ-Ⅲ,Ⅲ-Ⅴ waves.The BAEP of brain-stem infarction patients had no significant difference（P0.05） versus the control groups on six month.The BAEP of cerebellum infarction patients and occipital lobe infarction patients had no significant difference（P0.05） versus the control groups on one week,one month,three month and six month after attack.Conclusions BAEP possesses substantial applied value to brain-stem infarction of posterior circulation and can evaluate prognosis.