Effects of nasal obstruction on Eustachian tube function and middle ear pressure.
Effects of nasal obstruction on Eustachian tube function and middle ear pressure.
复制标题
鼻塞对咽鼓管功能和中耳压力的影响。
作者：
C. Buchman;W. Doyle;J. Swarts;C. Bluestone
为了评价鼻塞和中耳炎之间的关系，10只雪貂在单侧（E = 5）或双侧（n = 5）鼻塞之前和之后进行了研究。观察包括中耳状态的耳显微镜评估、中耳压力和强迫反应的鼓室压计记录、充气-放气和咽鼓管功能的连续监测测试。在6 - 8周的梗阻后随访期间，没有动物发展中耳炎的证据。持续随访期间的异常正中耳压力仅发生在双侧鼻塞的动物中。咽鼓管功能测试结果显示这些压力是在吞咽过程中产生的。两组中均未记录到插管被动功能的变化，但两组中均观察到主动功能的变化与中耳和鼻咽之间压力梯度的变化一致。
To evaluate the relationship between nasal obstruction and otitis media, 10 ferrets were studied before and after either unilateral (E = 5) or bilateral (n = 5) nasal obstruction. Observations included otomicroscopic assessments of middle ear status, tympanometric recordings of middle ear pressure and forced-response, inflation-deflation and continuous monitoring tests of Eustachian tube function. During the 6 8 week post-obstruction follow-up period no animal developed evidence of otitis media. Abnormal positive middle ear pressures lasting for the period of follow-up occurred only in the animals with bilateral nasal obstruction. Eustachian tube function test results showed these pressures to be generated during swallowing. No changes in the passive function of the tube were documented in either group, but changes in active function consistent with alterations in the pressure gradient between the middle ear and the nasopharynx were observed in both groups.
影响因子：
1.4
作者：
Casselbrant,ML;Cantekin,EI;Dirkmaat,DC;Doyle,WJ;Bluestone,CD
通讯作者：
Bluestone,CD