腕管综合征患者神经电生理检测

目的观察腕管综合征（carpal tunnel syndrome,CTS）患者神经电生理检测的临床应用价值。方法 2010-04/2013-06月就诊于本科的67例CTS患者测定环指-腕正中神经感觉及运动传导速度、潜伏期、运动波幅检测;并计算正中、尺神经感觉潜伏期差值。结果 67例CTS患者正中神经感觉传导异常75侧（88.2%）,潜伏期延长79侧（92.9%）,波幅降低33侧（38.8%）,15侧未引出感觉诱发电位（17.6%）。运动传导异常20侧（23.5%）,潜伏期延长25侧（29.4%）,波幅降低22侧（25.8%）。CTS患者正中神经感觉传导各项及运动传导潜伏期与正常对照组比值有显著统计学意义（P〈0.01）;CTS环指正中/尺神经感觉动作电位潜伏期差异常率98.2%;亦有显著统计学意义（P〈0.01）。结论正中神经感觉、运动传导可作为腕管综合征诊断的重要指标,且正中、尺神经感觉潜伏期差可作为腕管综合征诊断的敏感指标,可提高腕管综合征的诊断率,减少误诊率。

Electrophysiological Study on Carpal Tunnel Syndrome

Objective To study the value of electrophysiological examination in the diagnosis of carpal tunnel syndrome （CTS）.Methods A total of 67 CTS patients were enrolled between April 2010 and June 2013. Median nerve were electrophysiologically evaluated by nerve conduction（NCS） including sensor conduction velocity （SCV）, motor conduction velocity （MCV） , latency, amplitude. The median ulnar latency difference were calculated.Results The abnormal rate of SCV, latency, amplitude of median nerve sensitive conduction was 75 （88.2 % ） , 79 （92.9 %）, 33 （38.8 % ） respectively. The abnormal rate of MCV, latency, amplitude of median nerve motor conduction was 20 （23.5%）, 25 （29.4 % ）, 22 （25.8 % ） respectively.The abnormal rate of madian ulnar latency difference （MULD） of ring fingers was 98.2%.Conclusion Electrophysiological examination plays an important role in the diagnosis of CTS and MULD is the most sensitive parameters for detection of CTS.