Endoscopic Optical Coherence Tomography for Evaluation of Success of Tympanoplasty

Research output: Contribution to journalResearch articleContributedpeer-review


Objective:After tympanoplasty, it is often challenging to differentiate between different causes of a remaining air bone gap (ABG). Optical coherence tomography (OCT) offers a new approach for combined morphologic and functional measurements of the tympanic membrane and adjacent parts of the middle ear. Thus, it provides valuable diagnostic information in patients with a reduced sound transfer after middle ear surgery.Patient and intervention:A patient with history of tympanoplasty and a persistent ABG was investigated with endoscopic OCT before revision surgery.Main Outcome Measures:The oscillation behavior and the thickness of the reconstructed tympanic membrane was determined. The oscillation amplitudes of the inserted prosthesis were compared to a finite element model simulation and to the clinical findings and the audiometric data of the patient.Results:OCT measurements showed a reduced oscillation amplitude of the prosthesis while revealing an aerated middle ear and good coupling of the prosthesis. Transfer loss measured by OCT showed a similar progression as the ABG measured by pure-tone audiometry with a mean divergence of 4.45 dB.Conclusion:Endoscopic OCT is a promising tool for the evaluation of tympanoplasty outcome. It supports established otologic diagnostics and can help differentiating between different causes of conductional hearing loss.


Original languageEnglish
Pages (from-to)e901-e905
JournalOtology and Neurotology
Issue number7
Publication statusPublished - 1 Aug 2020

External IDs

PubMed 32658107
ORCID /0000-0002-3061-0171/work/142241299
ORCID /0000-0002-8160-3000/work/142248329
ORCID /0000-0003-0554-2178/work/142249802
ORCID /0009-0008-7642-8608/work/142255305
ORCID /0000-0003-3894-1175/work/148603697
ORCID /0000-0002-5256-1497/work/153110533



  • Chronic otitis media, Finite element model optical coherence tomography, Tympanoplasty