Sadé J, Luntz M
Department of Otolaryngology, Meir Hospital, Kfar Saba, Israel.
Acta Otolaryngol Suppl. 1988;458:48-51. doi: 10.3109/00016488809125101.
This is a prospective study of 27 eardrums which were found to be in an atelectatic condition before night sleep. On awakening in the morning, 10 (37.0%) of these ears were found to be inflated. The atelectasis as well as the presentation of spontaneous disappearance of the atelectasis were observed with the operating microscope. After awakening, the original atelectatic state reappeared within 65.7 min (on average). Spontaneous autoinflation of atelectatic ears cannot be explained by nocturnal CO2 diffusion into the middle ear, as CO2 would rediffuse within one order of time quicker than found-i.e. 6 min. The phenomenon emphasizes the fluctuating nature of atelectatic conditions.
这是一项对27个鼓膜的前瞻性研究，这些鼓膜在夜间睡眠前被发现处于萎缩状态。早晨醒来时，发现其中10只耳朵（37.0%）已充气。通过手术显微镜观察到了萎缩以及萎缩自发消失的情况。醒来后，原始的萎缩状态平均在65.7分钟内再次出现。萎缩性耳朵的自发自动充气不能用夜间二氧化碳扩散到中耳来解释，因为二氧化碳再扩散的时间比观察到的要快一个数量级——即6分钟。该现象强调了萎缩状态的波动性质。
