Journal
OTOLOGY & NEUROTOLOGY
Volume 39, Issue 7, Pages 894-902Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MAO.0000000000001853
Keywords
Balloon dilation; 7-item Eustachian tube dysfunction questionnaire; Eustachian tube; Eustachian tube dysfunction; In-office procedures; Patient-reported outcome measures; Randomized control trial
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Funding
- Entellus Medical
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Objective:Compare Eustachian tube balloon dilation versus continued medical therapy (control) for treating persistent Eustachian tube dysfunction (ETD).Study Design:Prospective, multicenter, randomized controlled trial.Setting:Tertiary care academic center and private practice.Patients:Diagnosed with medically refractory persistent ETD.Interventions:1:1 Randomization to balloon dilation or control. After 6 weeks, control participants had the option to undergo balloon dilation if symptoms persisted.Main Outcome Measures:Primary efficacy endpoint was the comparison between treatment arms in the mean change from baseline in the 7-item Eustachian Tube Dysfunction Questionnaire (ETDQ-7) score. Primary safety endpoint was complication rate.Results:Sixty participants were randomized (31 balloon dilation, 29 control). Mean (SD) change in overall ETDQ-7 score at 6 weeks was -2.9 (1.4) for balloon dilation compared with -0.6 (1.0) for control: balloon dilation was superior to control (p<0.0001). No complications were reported in either study arm. Among participants with abnormal baseline assessments, improvements in tympanogram type (p<0.006) and tympanic membrane position (p<0.001) were significantly better for balloon dilation than control. Technical success was 100% (91 successful dilations/91 attempts) and most procedures (72%) were completed in the office under local anesthesia. Improvements in the ETDQ-7 scores were maintained through 12 months after balloon dilation.Conclusions:Balloon dilation is a safe and effective treatment for persistent ETD. Based on improved ETDQ-7 scores, balloon dilation is superior to continued medical management for persistent ETD. Symptom improvement is durable through a minimum of 12 months. Procedures are well tolerated in the office setting under local anesthesia.
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