Clinical Analysis of Ear Congestion after Balloon Eustachian Tuboplasty (BET) with or without Tympanostomy Tube Insertion.

The patients showed relatively stable postoperative conditions after 3 years, and there were variations in the range of ETDQ-7 scores at 5 years postoperatively. Patients with levels I and II tympanic membrane retraction showed more favorable surgical effects. Surgical interventions are required for patients diagnosed with obstructive Eustachian tube dysfunction (ETD) after three months of conservative treatment without satisfactory results.