1. Bluestone CD, Doyle WJ. Anatomy and physiology of eustachian tube and middle ear related to otitis media. J Allergy Clin Immunol 1988;81(5 Pt 2):997–1003.
2. Ars B, Dirckx J. Eustachian tube function. Otolaryngol Clin North Am 2016;49:1121–33.
3. Sadé J, Ar A. Middle ear and auditory tube: middle ear clearance, gas exchange, and pressure regulation. Otolaryngol Head Neck Surg 1997;116:499–524.
6. Alper CM, Luntz M, Takahashi H, Ghadiali SN, Swarts JD, Teixeira MS, et al. Panel 2: anatomy (eustachian tube, middle ear, and mastoid—anatomy, physiology, pathophysiology, and pathogenesis). Otolaryngol Head Neck Surg 2017;156(4_suppl):S22–40.
7. Seibert JW, Danner CJ. Eustachian tube function and the middle ear. Otolaryngol Clin North Am 2006;39:1221–35.
8. Sente M. [Importance of the eustachian tube in middle ear function]. Med Pregl 1995;48:405–6. [Article in Croatian].
10. Hamrang-Yousefi S, Ng J, Andaloro C. Eustachian tube dysfunction. Treasure Island, USA: StatPearls Publishing;2022.
14. Schröder S, Lehmann M, Korbmacher D, Sauzet O, Sudhoff H, Ebmeyer J. Evaluation of tubomanometry as a routine diagnostic tool for chronic obstructive eustachian tube dysfunction. Clin Otolaryngol 2015;40:691–7.
15. Herrera M, Eisenberg G, Plaza G. Clinical assessment of eustachian tube dysfunction through the eustachian tube dysfunction questionnaire (ETDQ-7) and tubomanometry. Acta Otorrinolaringol Esp (Engl Ed) 2019;70:265–71.
19. McBride TP, Derkay CS, Cunningham MJ, Doyle WJ. Evaluation of noninvasive eustachian tube function tests in normal adults. Laryngoscope 1988;98(6 Pt 1):655–8.
21. Smith ME, Tysome JR. Tests of eustachian tube function: a review. Clin Otolaryngol 2015;40:300–11.
22. Özgür E, Bilgen C, Cengiz Özyurt B. Turkish validity and reliability of eustachian tube dysfunction questionnaire-7. Braz J Otorhinolaryngol 2018;84:435–40.
23. Hansen LJ, Glad H, Jørkov A, Lundin K, Kirchmann M. Validating the 7-item Eustachian tube dysfunction questionnaire in Danish. Dan Med J 2020;67:A11190617
25. Ungar OJ. The Hebrew version of the eustachian tube dysfunction questionnaire-7. Hear Balance Commun 2018;16:114–9.
26. Chen X, Xie L, Zeng H, Xu Y, Xiong H. Local versus general anesthesia for balloon dilation of the Eustachian tube: a single-center retrospective study in a Chinese population. Ear Nose Throat J 2020;May 19 [Epub]. Available at:
https://doi.org/10.1177/0145561320923172.
27. Cutler JL, Meyer TA, Nguyen SA, O’Malley EM, Thackeray L, Slater PW. Long-term outcomes of balloon dilation for persistent eustachian tube dysfunction. Otol Neurotol 2019;40:1322–5.
29. Lin WL, Chou YF, Sun CH, Lin CC, Hsu CJ, Wu HP. Evaluation of thirty patients with eustachian tube dysfunction in Taiwan by questionnaire survey. J Formos Med Assoc 2020;119:621–6.
30. Schröder S, Lehmann M, Sauzet O, Ebmeyer J, Sudhoff H. A novel diagnostic tool for chronic obstructive eustachian tube dysfunction—the eustachian tube score. Laryngoscope 2015;125:703–8.
31. Swarts JD, Alper CM, Luntz M, Bluestone CD, Doyle WJ, Ghadiali SN, et al. Panel 2: eustachian tube, middle ear, and mastoid--anatomy, physiology, pathophysiology, and pathogenesis. Otolaryngol Head Neck Surg 2013;148(4 Suppl):E26–36.