Abstract
Purpose
To identify the characteristics of tympanogram in symptomatic Eustachian tube dysfunction (SETD) patients.
Methods
One hundred and twenty-four unilateral SETD patients presenting with type A tympanograms who underwent balloon dilation of the Eustachian tube (BDET) were recruited and assigned into effective BDET group and ineffective BDET group based on treatment effect. The unaffected ear in the same patient served as normal control. Fifty-one patients with sudden sensorineural hearing loss (SSHL) and 46 patients with Meniere’s disease (MD) were selected for cases of non-ETD ear fullness. Demographics, 7-item Eustachian Tube Dysfunction Questionnaire score (ETDQ-7), and tympanograms were recorded and analyzed preoperatively and postoperatively.
Results
Of the 124 SETD patients included in the study 94 (75.8%) showed good response to BDET based on decreased ETDQ-7 scores. There were no significantly differences in the values of tympanometric peak pressure (TPP) between diseased ears and healthy ears in SETD patients, as well as in SSHL and MD patients. Instead, TPP shifts (the difference between two values of TPP obtained under a Valsalva and Toynbee maneuver) were remarkably reduced in affected ears compared with those in unaffected ears in effective BDET group at baseline. Moreover, TPP shifts in these SETD ears significantly raised and reached the levels in healthy ears postoperatively.
Conclusions
This study demonstrated TPP shifts are decreased in a subset of SETD patients presenting with type A tympanograms and these patients are more likely to show good response to BDET.
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Acknowledgements
We thank Ms. Yanfang Ye, MPH for assistance in statistical analysis.
Funding
This work was supported by Guangzhou Science and Technology Planning Project (No. 202102010332).
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Xie, L., Xu, Y., Chen, L. et al. Characteristics of tympanogram in symptomatic Eustachian tube dysfunction. Eur Arch Otorhinolaryngol 280, 581–587 (2023). https://doi.org/10.1007/s00405-022-07503-7
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DOI: https://doi.org/10.1007/s00405-022-07503-7