Magnuson B
Am J Otolaryngol. 1981 Nov;2(4):277-83. doi: 10.1016/s0196-0709(81)80037-3.
Eustachian tube function was studied in 18 patients who had developed recurrent middle ear disease after middle ear surgery on one ear. The types of recurrent disease included recurrent retraction of the tympanic membrane, recurrent cholesteatoma, columella penetration, postoperative perforation, and infection. Pressures in both of the middle ears, as well as in the nasopharynx, were recorded simultaneously. The ears of patients in this study were found to be able to equalize pressure as well as did normal ears examined previously. However, in 12 of the 18 ears that had been operated on, failure of eustachian tube closing with sniff-induced negative pressure in the middle ear was found. Additionally, in three patients, a similar condition was present in the contralateral ear. It is concluded that postoperative complications of the types described may be correlated with tubal closing failure and sniff-induced high negative pressure in the middle ear space.
对18例在一侧耳朵进行中耳手术后发生复发性中耳疾病的患者的咽鼓管功能进行了研究。复发性疾病的类型包括鼓膜反复内陷、复发性胆脂瘤、小柱穿透、术后穿孔和感染。同时记录了双侧中耳以及鼻咽部的压力。研究发现，本研究中患者的耳朵与先前检查的正常耳朵一样能够平衡压力。然而，在接受手术的18只耳朵中的12只中，发现中耳因吸气引起负压时咽鼓管闭合失败。此外，在3例患者中，对侧耳朵也存在类似情况。得出的结论是，所述类型的术后并发症可能与咽鼓管闭合失败以及中耳空间因吸气引起的高负压有关。
