Honjo I, Kumazawa T, Honda K
Arch Otolaryngol. 1981 Apr;107(4):221-3. doi: 10.1001/archotol.1981.00790400023004.
A simple impedance method to evaluate Eustachian tube function has been reported. The principle of the test consists of recording the impedance of the eardrum during Valsalva's maneuver and during swallowing. By this procedure, the inflow and outflow of air through the tube is recorded as a simple pattern of impedance change that is classified into the following three groups: normal, obstructive, and patent. The conformity of these test results to those of an aerodynamic test has indicated the reliability of the test for clinical use.
一种评估咽鼓管功能的简单阻抗方法已被报道。该测试的原理包括在瓦尔萨尔瓦动作和吞咽过程中记录鼓膜的阻抗。通过这个过程，通过咽鼓管的空气流入和流出被记录为一种简单的阻抗变化模式，该模式可分为以下三组：正常、阻塞和通畅。这些测试结果与空气动力学测试结果的一致性表明了该测试在临床应用中的可靠性。
