ArticleOtolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery2022
Mechanics of Total Drum Replacement Tympanoplasty Studied With Wideband Acoustic Immittance.
Article in Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 10 citations in OpenAlex.
- The Transmission of Sound to the Cochlea in Normal and Pathological Human Middle Ears.Journal of the Association for Research in Otolaryngology : JARO · 2025Review
- Wideband tympanometry for evaluating middle ear function and hearing prognosis after endoscopic type I tympanoplasty.Frontiers in neurology · 2025Article
- The Rise and Fall of Aural Acoustic Immittance Assessment Tools.Seminars in hearing · 2023Review
- Characteristics of large vestibular aqueduct syndrome in wideband acoustic immittance.Frontiers in neuroscience · 2023Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 3 countries.
Funding
Abstract
objectivePoor hearing outcomes often persist following total drum replacement tympanoplasty. To understand the mechanics of the reconstructed eardrum, we measured wideband acoustic immittance and compared the mechanical characteristics of fascia-grafted ears with the normal tympanic membrane. STUDY
designProspective comparison study.
settingTertiary care center.
methodsPatients who underwent uncomplicated total drum replacement with temporalis fascia grafts were identified. Ears with healed grafts, an aerated middle ear, and no other conductive abnormalities were included. All patients underwent pre- and postoperative audiometry. Wideband acoustic immittance was measured with absorbance and impedance computed. Fascia-grafted ears were compared with normal unoperated ears.
resultsEleven fascia-grafted ears without complications were included. Postoperatively, the median air-bone gap was 15 dB (250-4000 Hz), with variation across frequency and between ears. Fifty-six control ears were included. Absorbance of fascia-grafted ears was significantly lower than that of normal ears at 1 to 4 kHz (
conclusionThe mechanics of fascia-grafted ears differ from the normal tympanic membrane by having lower absorbance at mid- to high frequencies and thus poor sound transmission. The lower resistance in fascia-grafted ears may be due to poor coupling of the graft to the malleus. To improve sound transmission, grafts for tympanic membrane reconstructions would benefit from refined mechanical properties.
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