逐点测试对嵌压性神经病的定位诊断研究

逐点测试对嵌压性神经病的定位诊断研究

吴保凡

【期刊名称】《癫癎与神经电生理学杂志》 【年(卷),期】2001(010)001

【摘要】目的：研究逐点测试对嵌压性神经病的定位诊断价值。方法：对58例确诊的累及运动功能的嵌压性单神经病患者进行受累神经干上间隔2cm的逐步测试，并同时给予常规神经电图检查。结果：58例76条神经中51例(88%)65条神经(85%)跨嵌压段一项或几项指标异常，其中波幅明显衰减60条(79%)，传导减慢40条(53%)，潜伏期延长42条(55%)，波形显著变化55条(72%)，波宽显著变化54条(71%)。阳性率最高的表现是波幅降低。与常规神经电图总的阳性率为60%(46条)作比较，逐点测试阳性率明显提高(P＜0．01）。结论：逐点测试对嵌压性单神经病有重要的定位诊断价值，其中跨嵌压段波幅的显著衰减比传导速度的减慢有更高的阳性率%Objectives: To study the location diagnostic value of inchingtest in compressive neuropathy.Methods: The inching test was performed in 48 patients with compressive simple neuropathy with motor function involved,and the rourtine EMG was done.Results: one or more indexes of inching test were abnormal in 65 nerves(85%), among 76 ones detected. The decrease of amplitude, of conduction velocity and prolongation of latency was noted in 60 nerves(79%), 40 ones (53%) and 42(55%) respectively. The significant changes of wave form and wave duration was found in 55 nerves (72%) and 54(71%) respectively. The total