Table 1.
Criteria, findings and interpretation of assessments and test results and possible associated ETD endotypes.
Table 2.
Specific findings and test results and suggested ETD endotypes.
Fig 1.
Demonstrate appearance of the left Eustachian tube nasopharyngeal orifice in four different patients that represent the endotypes of normal Eustachian tube (ET) function, Inflammatory ET dysfunction (ETD), Restrictive ETD, and muscular ETD, at different phases of swallow, i.e., soft palate position elevation at rest or onset of swallow at time-point 1 (T1), during the elevation of soft palate (T1-2), at the time of maximum elevation (T2), and at the time of maximum lumen ET elevation.
Table 3.
Distribution of ETD endotypes based on the ETF testing and trans nasal video endoscopy.
Table 4.
Distribution of multiple and primary ETD endotypes with either trans nasal video endoscopy or ETF testing, or both.
For each ear, a primary, i.e., a dominant diagnosis was selected based on the review of both diagnostic modalities.