Clinical symptoms, endoscopic signs and eustachian function results in patients diagnosed with patulous eustachian tube at Bach Mai Hospital, 2023 - 2024

Abstract

The objective of the current study is to describe clinical symptoms, endoscopic signs and eustachian function results in patients diagnosed with patulous Eustachian tube at Bach Mai hospital, 2023 - 2024. A prospective survey of medical records identified 20 ears of 10 patients with “Definite PET” diagnosed by the JOS Diagnostic Criteria between January 2023 and April 2024. Initial diagnosis, aural symptoms (voice autophony, aural fullness and breathing autophony), tubal obstruction procedure (posture change) and objective findings (tympanic membrane movement, Tubo-Tympano-Aerodynamic Graphy (TTAG) and sonotubometry were evaluated. Results: Voice autophony, breathing autophony and a sense of aural fullness were observed in 95.0%, 85.0%, and 75.0%, respectively, of definite PET case. All 3 symptoms were detected in 70.0% of cases. According to the diagnostic criteria proposed by the JOS, 90.0% ears with definite PET were positive in TTAG, and 60% were positive in sonotubometry. Conclusions: The diagnosis of PET based on the diagnostic criteria for PET proposed by JOS is useful for the diagnosis of PET.