摘要
采用声管测定法、声阻抗测定法和鼻咽压力测定法，研究在Toynbee（托氏）试验时中耳压力、咽鼓管（ET）开放时程和鼻咽压力时程三者间的关系；同时，测定鼻腔填塞前后鼓室压力的变化，并用糖精法测定鼓膜穿孔者于鼻腔填塞前后的粘膜纤毛运动情况。结果显示：托氏试验引起的鼓室负压与ET开放时程和鼻咽腔负压波时程的延长有关；这种负压可影响ET粘膜纤毛的活动性，使糖精排递时间延长。托氏现象反映出ET的关闭功能不良，它可能是一种病态现象，临床应及时预防和消除这种现象或由其诱发的中耳异常负压。
This paper studied the relations between the middle ear pressure, the opening duration of eustachian tube (ET), and the duration of nasopharyngeal pressure phase during Toynbee maneuver by sonotubometry, tympanometry and nasopharynx manometry. The mucociliary clearance of ET in Toynbee maneuver was also studied by Saccharin method. The results showed that negative middle ear pressure induced by Toynbee maneuver was related to prolonged opening duration of ET and duration of negative pressure in nasopharynx and lower opening pressure of ET. This phenomenon was often shown on the patients with nasal obstruction, and reduced ET mucociliary clearance. The Toynbee phenomenon indicates a closing failure of the ET, clinically, this situation meeds to be prevented and resolved in a timely manner.
出处
《临床耳鼻咽喉科杂志》
CSCD
1998年第1期9-12,共4页
Journal of Clinical Otorhinolaryngology
关键词
托氏现象
中耳压力
咽鼓管
鼻咽压力
Toynbee maneuver Middle ear pressure Nasopharynx pressure Eustachian tube
