摘要
目的：研究大鼠急性骨髓损伤后ＳＥＰ和ＭＥＰ的变化。方法：应用棘间韧带双极记录法记录脊髓传导性ＳＥＰ。ＭＥＰ反应用Ｏｗｅｎ的经椎板脊髓刺激技术诱发，并在双侧下肢肌肉记录。结果：ＳＥＰ传导速度在脊髓损伤后１５分钟出现显著性变化，共出现四次假阴性结果。全部ＭＥＰ参数，包括传导速度，波幅和负波面积，在脊髓损伤后５分钟均发生非常显著性变化，无一例出现假阴性变化。实验中，ＭＥＰ变化与大鼠双下肢运动功能状况呈一致性变化。结论：ＭＥＰ在监测脊髓运动功能方面比ＳＥＰ敏感、准确。
Objective:To study the changes of SEPs and MEPs after the acute spinal injury of wistar rats. Method: The spinal conducted SEPs were recorded using interspineous bipolar recording technique. MEP responses were evoked by Owen's transleminar spinal stimulation technique, and were recorded at both lower extremities muscle. Result: SEP conducted velocity changed significantly at 15 minutes after spinal striking and presented false negative changes for 4 times. All parameters of MEP, including CV, amplitude and negative wave area, happened much signicantly changes at 5 minutes after striking and were accorded with the changes of motor status of the lower extremities without any false negative change. Conclusion: MEPs are more sensitive to monitor motor status of the spinal cord than SEPs.
出处
《中华神经外科杂志》
CSCD
北大核心
1997年第5期289-291,共3页
Chinese Journal of Neurosurgery
