腰椎间盘突出症患者与健康人脊髓诱发电位对比研究

Comparison of spinal-cord evoked potential between the lumbar disc herniation and healthy subjects

刺激胫神经记录了41例经 CT 证实的腰椎间盘突出症(LDH)患者的脊髓诱发电位(SCEP),并与34名健康人的 SCEP 资料进行比较。患者组 SCEP 检出的阳性率为87.9%(36/41),主要异常为患侧 P_1波幅降低,与健侧比较有非常显著性相关(P<0.0005)。非手术治疗后发现,P_1波的降低与疗效呈反比关系,这也提示该波能间接反映腰神经根受损程度。结果表明,SCEP 对 LDH 的定位,反映受损程度、预后及疗效评定有较好的临床应用价值。

The spinal-cord evoked potential (SCEP) of tibiat nerve in 41 lumbar disc herniation (LDH) patients was recorded and compared with 34 healthy subjects.The result showed that positive de- tected rate of SCEP in LDH patients was 87.9%.The main abnormality was the amplitude of P_1 wave of affected limb lowered.There was a significant correlation compared with that of normal limb.After treat- ment,the relation of lower P_1 wave and curative effect was inverse proportion,suggesting the change of P_1 wave may indirectly reflect the damage degree of lumbar nerve roots.It is indicated that the SCEP has an important role for LDH location,damage degree,prognosis and therapeutic effect.