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目的：探讨局限性癫痫患儿体感诱发电位特征及应用价值。方法：依据头颅ＣＴ结果分组观测５１例局限性癫痫患儿及３０例正常儿童的双侧正中神经短潜伏期体感诱发电位（ＳＬＳＥＰ）各指标的差异，并与常规脑电图结果进行了比较。结果：与对照组相比，脑部ＣＴ未发现病变组Ｎ２０波幅在癫痫灶侧明显高于对侧；而癫痫灶侧大脑病变组的病灶侧Ｎ２０波幅却明显低于对侧。在部分脑电图未显示局灶性异常的病例也同样显示了这种差异。结论：对于局限性癫痫患儿进行正中神经ＳＬＳＥＰ检查可有助于早期判断症状性癫痫和特发性癫痫，在某种意义上它可能较常规脑电图检查具有更高的敏感性
Objective: To investigate the characteristics and application value of somatosensory evoked potentials in children with partial epilepsy. Methods: According to the results of cranial CT, the difference of each index of SLSEP in 51 cases of localized epilepsy and 30 normal children was observed and compared with the results of routine electroencephalogram. Results: Compared with the control group, N20 amplitude in the lesion group was not significantly higher than that in the contralateral group in the lesion group, while lesion side N20 amplitude in the epileptic lesion group was significantly lower than that in the contralateral group. The same is true for those cases where focal EEG does not show focal abnormalities. CONCLUSIONS: Median nerve SLSEP examination in children with localized epilepsy may be helpful in early detection of symptomatic epilepsy and idiopathic epilepsy, which in a way may be more sensitive than conventional electroencephalography