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Long-term Outcomes and Reliability of Jahn Ventilating Tube

Objective: The Jahn ventilating tube (JVT) is an osseointegrated middle ear ventilating tube that is used internationally in the treatment of Eustachian tube dysfunction (ETD). Little long-term data exists quantifying the functions and complications of this device. This study aims to assess the long-term outcomes with use of the JVT. Method: Retrospective chart review of 22 patients (24 ears) with ETD managed with JVT (1994-2008) with at least 3 years of follow-up, or documented JVT failure at any time point. Main outcome measures were duration of patency, time to extrusion, middle ear aeration, audiogram, Sade score, and complication rate. Results: Twelve out of 24 JVTs were patent at last follow-up. Mean duration of retention of a patent tube was 6 years. Aeration of the middle ear with a patent JVT was excellent, with mean Sade score at last visit of 1.08. Mean improvement in air bone gap between the preoperative and last visit was 3 dB. Twelve out of 24 JVTs extruded during the study period. The mean time to extrusion was 21 months. There was no difference in age at insertion between the 2 groups (P = .113). Two complications were identified, which were persistent tympanic membrane perforations. Conclusion: JVTs are a safe alternative to traditional pressure equalization tubes. When successful, they can establish a well-aerated middle ear for extended periods of time. However, early extrusion undermines reliability.