局部振动病患者手指等振觉阈值测定及其意义

Determination of Finger Vibrotactile Threskold and Its Significance in Patieuts witk Rand-arm Vibration Syndrome

定量测量了９７名局部振动病人及其观察对象和６０名健康人的中指指端振觉阈值。绘制了手指等振觉阈值曲线和振觉损伤曲线。结果表明振觉阈值最敏感频率在对照组是１２５Ｈｚ，在局部振动病人组是８Ｈｚ，局部振动病人组振觉阈值高于对照组振觉阈值，并首先在高频处发生阈移，表现为１２５Ｈｚ和２５０Ｈｚ的“Ｖ”型下陷。振觉阈值测量是一种有价值的局部振动病辅助诊断方法。

ibrotactile sense threshold (VST)of the end of the middle fingers in 97 patients with established or suspected hand-arm vibration syndrome and 60 healthy controls was determined, and finger VST contour and vibration damage curve were plotted. Results revealed the most sensitive frequencies of VST were 8 Hz for the patients and 125 Hz for the controls, respectively. VST in the patients with hand-arm vibrat ion syndrome was higher than that in the controls, and the threshold shift was initially at high frequency with a“V”dip at 125 Hz and 250 Hz. So, the authors think determination of VST is an auxiliary method used for diagnosis of hand-arm vibration syndrome.