单侧声带麻痹的电声门图测试

为探讨单侧声带麻痹患者的声带振动规律,文中对46例患者作了电声门图(electroglottograph,EGG)测试,将参数接触率(contact quotient,CQ)、接触率微扰(contact quotient perturbation,CQP).接触幂(contact index,CI)和接触幂微扰(contact index perturbation,CIP)与声带固定的位置相结合进行统计学分析,结果为多数单侧声带麻痹患者EGG参数异常,包括CQ减少,Cl、CQP及CIP增大.其中,声带固定在正中位组EGG各参数正常率高于旁正中位组,CQ异常率旁正中位组高于正中位组,中间位组EGG各参数均异常,声带固定的位置不同,CI及CQP、CIP无显著性差异.因EGG能描记每一振动周期特点,对研究缺乏规律性的声带振动,有一定的应用前景.

EGG Measurement of Unilateral Vocal Cord Paralysis

To study the effect of unilateral vocal cord paralysis on vocal vibration, EGG parameters of 46 patients were analysed. EGG of most patients were abnormal, CQ decreasing while CI, CQP and CIP increasing. The incidence of normal EGG in patients whose vocal cord located in the middle was higher than that in the para - middle. Inversely, the incidence of abnormal EGG - CQ of the former was lower than that of the latter. EGG of the group in the intermediate was abnormal. The position of paralyzed vocal cord had no effect on CI,CQP and CIP. EGG reflects the characteristics of per vibratory cycle, and is a potential technique to study the irregular vocal vibration.