Tideholm B, Carlborg B, Jönsson S, Bylander-Groth A
Department of Oto-rhino-laryngology, University Hospital, University of the Lund, Malmö, Sweden.
Acta Otolaryngol. 1998 Jun;118(3):369-74. doi: 10.1080/00016489850183458.
A new method was used for continuous measurement of the middle ear (ME) pressure during a 24-h period. In 10 subjects without a history of ear disease a small perforation was made through the tympanic membrane. A tight rubber stopper containing a small polyethylene tube was fitted into the external ear canal. Conventional tubal function tests were performed. The equipment was then carried by the subjects for 24 h of normal activity to monitor any slow or rapid dynamic pressure change in the ME. Body position was found to be the most important factor affecting ME pressure variation, during the 24-h continuous pressure measurements. A significant pressure rise occurred in the recumbent position in all but one subject. Few rapid pressure equilibrations were seen during the recordings, indicating few tubal openings. This implies that the pressure changes in the ME seen in this study were mainly the result of gas exchange over the mucosa. The investigation might be a base for reference when investigating different kinds of pathologic conditions in the ear.
采用一种新方法在24小时内连续测量中耳（ME）压力。在10名无耳部疾病史的受试者中，通过鼓膜制造一个小穿孔。将一个装有小聚乙烯管的紧密橡胶塞装入外耳道。进行了常规的咽鼓管功能测试。然后，受试者携带该设备进行24小时的正常活动，以监测中耳任何缓慢或快速的动态压力变化。在24小时连续压力测量期间，发现身体姿势是影响中耳压力变化的最重要因素。除一名受试者外，所有受试者在卧位时均出现显著的压力升高。记录期间几乎未见快速的压力平衡，表明咽鼓管开放次数很少。这意味着本研究中观察到的中耳压力变化主要是黏膜气体交换的结果。该研究可能为研究耳部不同病理状况提供参考依据。
