摘要
目的：探讨环指感觉神经传导速度（SCV）测定对诊断轻度腕管综合征（CTS）的敏感性。方法：临床症状体征符合CTS，正中神经运动末端潜伏期正常的59例（62手）患者和50名（100手）年龄性别相匹配的健康对照参与本研究，采用顺向SCV测定法分别测定环指（指4）正中神经和尺神经SCV，指3正中神经SCV。结果：指4尺神经SCV〉46．6m／s，指4正中神经SCV〈44．6m／s，和（或）尺神经SCV与正中神经SCV差值〉8．1m／s（x＋2s），符合CTS。正中神经SCV指3测定阳性率为70％，指4测定阳性率为82％，指4正中神经与尺神经SCV差值阳性率为96％。指4刺激可在29例（48手）患者腕部正中神经处记录到双峰电位，对照组未见。结论：比较指4正中神经和尺神经SCV的差值在鉴别轻度CTS方面是一个非常敏感的方法，腕部正中神经处记录到双峰电位是CTS确诊的明确指标。
Objective： To explore the median nerve sensory conduction through the carpal tunnel with ulnar nerves so as to discover whether a mild carpal tunnel syndrome（CTS）exists. Methods： Sixtytwo hands with recent onset symptoms and sings of CTS,but normal median distal motor lantency and 50 age-matched normal controls （100 hands）,while median and ulnar sensory conduction velocity （SCV）was recorded from the ring finger. Results： Median and ulnar sensory conduction velocity differenee〉8.1 m/ s was abnormal in 59 hands （96 %）which could provide confirmation for the diagnosis of CTS. A double peak potentials could be recorded over the median nerves with some nerver with some CTS after stimula- tion of ring fingers but not in control hands. Conclution： Comparison of median and ring fingers ulnar SCV was a very sensitive method to detect mild CTS. The difference of median and ulnar sensory conduction velocity 8.1 m/s,and/or double peak potential recorded over the median nerve contributes to immediate dignosis of CTS.
出处
《临床神经电生理学杂志》
2009年第4期237-239,243,共4页
Journal of Clinical Electroneurophysiology
