Groth P, Ivarsson A, Tjernström O, White P
Acta Otolaryngol. 1985 Jan-Feb;99(1-2):67-73. doi: 10.3109/00016488509119147.
The capacity of the Eustachian tube to equilibrate pressure differences across the eardrum was tested repeatedly at different rates of pressure change with the aid of a quantitative impedance method in a pressure chamber. Three recordings of the active and passive pressure equilibration functions were made during chamber pressure changes of 0.3, 0.7 and 1.5 kPa-1s in 53 ears in 28 otologically healthy subjects. The middle ear pressures at which the active and passive equilibrations were achieved increased with increasing rates. The test-retest reliability was not rate dependent as regards the passive pressure equilibration functions, but tended to deteriorate with increasing rates for the active equilibration functions. Advantages and disadvantages of the different rates in such tests are discussed.
借助压力舱内的定量阻抗方法，以不同的压力变化速率对咽鼓管平衡鼓膜两侧压力差的能力进行了反复测试。在28名耳科健康受试者的53只耳朵中，当压力舱压力以0.3、0.7和1.5 kPa·s⁻¹的速率变化时，对主动和被动压力平衡功能进行了三次记录。实现主动和被动平衡时的中耳压力随速率增加而升高。对于被动压力平衡功能，重测信度与速率无关，但对于主动平衡功能，重测信度往往随速率增加而变差。本文讨论了此类测试中不同速率的优缺点。
