300例截瘫的体感诱发电位检查

对唐山市１９７６年地震所致的截瘫伤员，随机抽样做体感诱发电位（ＳＥＰ）检查３００例，其中完全截瘫２０９例，不全截瘫９１例，共检查腓总神经和正中神经ＳＥＰ ６００侧，发现４１６侧完全性截瘫的ＳＥＰ全部消失，不全截瘫的１６６侧，５８％的ＳＥＰ存在。研究结果表明：不全截瘫病人ＳＥＰ消失与否与脊髓损伤平面以下的肌力状况无关，而深感觉则与ＳＥＰ的存在与消失显著相关。ＳＥＰ与足趾定位觉检查呈等级相关。ＳＥＰ不能直接反映急性脊髓损伤后运动功能是否良好，仅间接与脊髓的前索状况有关。本组根据９１幅异常ＳＥＰ图形，将其归纳为６种主要表现，并试图分析其发生基础及与临床的关系。急性脊髓损伤后ＳＥＰ消失多数预后不良，但在创伤初期确定其不恢复的最终时间仍有困难。

Somatosensory evoked potentials in 500 cases paraplegia patients injured in Tangshan earthquake

300 paraplegic patients who were injured in the Tangshan earthquake in 1976 were randomly selected attending the examination of somatosensory evoked potentials. 209 cases of these patients were complete paraplegia and the others (91 cases) were incomplete. 600 sides of the peroneal and median SEP were examined in this study. The results showed that: In all of 416 sides of the complete paraplegia, the SEP completely disappeared and about 58% of 166 sides of incomplete paraplegia, the SEP were present. The result of this study indicated that both the presence and the absence of SEP in incomplete paraplegia significantly correlated with the sense of joint position of the toe, but there were not correlation between the muscle power (below the injury level) and SEP. SEP can not directly reflected the motor function of acute spinal cord injury, but it could indirectly shown the condition of the anterior path of spinal cord. Based on gi abnormal figures of SEP, we have divided them into six types. The prognosis of acute spinal cord injury was not good in SEP absent cases; it is difficult to decide by means of sep to decide there were no hope to recover at the early period.