학술논문
Ambient pressure tympanometry in the workup of patulous eustachian tube and neurotologic disorders.
Document Type
Article
Author
Source
Subject
*EUSTACHIAN tube
*IMPEDANCE audiometry
*OTOSCOPY
*MIDDLE ear ventilation
*EAR canal
*COMPUTED tomography
*TYMPANIC membrane perforation
*EAR ossicles
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Language
ISSN
1749-4478
Abstract
We present a case series of eight ears meeting PET criteria who displayed respiration-synchronous APT waveforms performed during breathing manoeuvres, including forced respiration through bilateral nostrils (A-C) and the ipsilateral nostril alone (D-F). APT, Ambient pressure tympanometry; PET, Patulous ET gl In 327 ears not meeting PET criteria, 20 (6.1%) displayed respiration-synchronous waveforms (Figure 3), significantly lower than in the PET group ( I X i SP 2 sp [1, N = 342] = 42.5, I P i < .001). In 327 non-PET ears, the largest cohort of non-PET ears evaluated to date, respiration-synchronous APT wave patterns demonstrate high specificity for PET (93.9%), consistent with previous literature. In contrast to previous reports, respiration-synchronous Ambient pressure tympanometry (APT) wave patterns display low sensitivity (53.3%) in our retrospective cohort of 15 PET ears, as diagnosed by characteristic symptoms and otoscopy. [Extracted from the article]