Okubo J, Watanabe I, Shibusawa M, Ishikawa N, Ishida H, Teramura K
Department of Otorhinolaryngology, Tokyo Medical and Dental University, Japan.
ORL J Otorhinolaryngol Relat Spec. 1987;49(5):242-52. doi: 10.1159/000275944.
The Eustachian tube is well known as an organ serving the ventilation and drainage of the tympanic cavity and mastoid. Ventilation is carried out by the opening and closing of the Eustachian tube accompanying swallowing movements. Until now there has been no instrument to quantify these motor activities of the tube necessary for its function as a ventilator. The author developed a generally applicable sonotubometer Model WIO-01 with the help of Siemens Hearing Institute K.K. for automatic measurement of the aforesaid tubal function with the use of 7 kHz full-octave band noise. In a sonotubometric trial with 32 adult female subjects, the duration of patency of the Eustachian tube was 288.5 +/- 1.38.5 ms, and the amplitude eliciting response was 16.4 +/- 8.3 dB. The positive response rate was 89.1%. In 89 children aged 4-12 years, a positive response was detected in 117 ears (61.9%). The mean duration of patency was 337.7 +/- 154.4 ms, and the amplitude 16.3 +/- 7.2 dB. It is physiological to have tubal opening and closing during natural swallowing. It is therefore important to understand the tubal function when dealing with tympanoplasty and diseases caused by tubal dysfunction.
咽鼓管作为一个为鼓室和乳突提供通气和引流功能的器官，广为人知。通气是通过吞咽动作时咽鼓管的开闭来实现的。到目前为止，还没有一种仪器能够量化咽鼓管作为通气器发挥功能所需的这些运动活动。作者在西门子听力研究所的帮助下开发了一种通用的声管计WIO - 01型，用于利用7kHz倍频程带噪声自动测量上述咽鼓管功能。在一项对32名成年女性受试者的声管测量试验中，咽鼓管开放的持续时间为288.5±1.38.5毫秒，引发反应的幅度为16.4±8.3分贝。阳性反应率为89.1%。在89名4至12岁的儿童中，117只耳朵（61.9%）检测到阳性反应。开放的平均持续时间为337.7±154.4毫秒，幅度为16.3±7.2分贝。在自然吞咽过程中出现咽鼓管开闭是正常生理现象。因此，在进行鼓室成形术以及处理由咽鼓管功能障碍引起的疾病时，了解咽鼓管功能非常重要。
