正常人上睑提肌功能的定量测定

Quantative study of the function of normal persons superior levator muscle

目的：定量测定我国正常人上睑提肌功能。方法：采用丹麦Ｎｅｕｅｒｍａｔｉｃ２０００型肌电图仪，对正常人各年龄组３００例（６００只眼）及５８例（６６眼）先天性上睑下垂患者进行了上睑提肌肌电图检查。结果：正常人重收缩时峰值电压：右眼为０．９５±０．１３ｍｖ，左眼为０．９３±０．１１ｍｖ。右左眼及性别之间差异无显著性。各年龄组间，２１岁组与其前后年龄组间差异有显著性，提示２１岁组可能是上睑提肌肌力最强的时期。先天性上睑下垂患者峰值电压在０．３ｍｖ以下术后睑裂未达到预想高度，而峰值电压在０．３ｍｖ以上则术后效果满意。结论：为我国正常人上睑提肌功能的测定提供正常参考值。并且为上睑下垂矫正术的术式选择提供了客观依据。

The study was designed to determine guantity of the function of normal persons superior levauor muscle in our country.Methods:Electromyographic examinations of superior levator muscle were done in 300 cases (600 eyes) of normal person and 58 cases (66 eyes) congental ptotic patients using Neuematic 2000 electromyographic.Results:In normal person the spike voltage of right eye during contraction was 0.95±0.32mv and of left eye was 0.93±0.28mx.There are no significance difference in laterality and sex.The difference was remarkable between 21 year group and other groups.It manifested the 21 years may be the strongert time of superior levator muscle.The congenial ptotic patients whose spike voltage was below 0.3mv,their palpebral fissure did not reach the anticipated width after the operation.On the Contrary,the patients whose spike voltage was above 0.3mv the operative result were satistatory.Conclusion:The result can serve as the normal reference quantity of the function of normal persons superior levator muscle in our country.And it supplied procedure.