Change in Eustachian Tube Function With Balloon Dilation in Adults With Ventilation Tubes

Area of Science:

• Otolaryngology
• Medical Devices
• Diagnostic Techniques

Background:

• Chronic Eustachian tube dysfunction (ETD) significantly impacts quality of life.
• Current treatments for severe ETD, including ventilation tubes (VT), may not fully resolve the condition.
• Balloon dilation of the Eustachian tube (BDET) is an emerging therapeutic option.

Purpose of the Study:

• To assess the changes in Eustachian tube function (ETF) following balloon dilation of the Eustachian tube (BDET).
• To evaluate the efficacy of BDET in patients with chronic ETD and ventilation tubes.

Main Methods:

• Prospective cohort study involving eleven adults with chronic ETD and ventilation tubes.
• Unilateral BDET performed on subjects with moderate to severe ETD.
• Eustachian tube function assessed using Forced Response Test (FRT), Inflation Deflation Test (IDT), and Pressure Chamber test pre- and post-procedure.

Main Results:

• BDET decreased opening and closing pressures in the Eustachian tube.
• Improved middle ear pressure equilibration with swallowing was observed post-BDET.
• Functional CT scans showed no significant anatomical changes, but functional tests indicated easier ET opening and prolonged patency.

Conclusions:

• BDET may offer benefits for adults with severe ETD by improving ETF.
• Complete resolution of ETD may not occur, and continued reliance on ventilation tubes might be necessary for some patients.