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Hearing outcome after myringoplasty in Sweden: A nationwide registry‐based cohort study
Author(s) -
Berglund Malin,
Olaison Sara,
Bonnard Åsa,
Fransson Mattias,
Hultcrantz Malou,
Florentzson Rut,
Dahlin Christer,
Eriksson Per Olof,
Westman Eva
Publication year - 2020
Publication title -
clinical otolaryngology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.914
H-Index - 68
eISSN - 1749-4486
pISSN - 1749-4478
DOI - 10.1111/coa.13506
Subject(s) - myringoplasty , medicine , audiogram , hearing loss , bone conduction , surgery , retrospective cohort study , cohort , otologic surgical procedures , cohort study , audiology , tympanoplasty , middle ear
Objectives To present hearing results after successful primary myringoplasty surgeries registered in the Swedish Quality Registry for Myringoplasty and to evaluate the chance of hearing improvement and the risk of hearing loss. Design A retrospective nationwide cohort study based on prospectively collected registry data between 2002 and 2012. Settings Registry data from secondary and tertiary hospitals performing myringoplasty. Participants Patients with healed tympanic membrane after primary myringoplasty surgery performed from 2002 to 2012 in Sweden. Main outcome measures Postoperative hearing results, hearing gain and air‐bone gap (ABG). Results In 2226 myringoplasties, air conduction audiograms were recorded, and the average preoperative pure tone average (PTA 4 ) of the group was 28.5 dB, which improved postoperatively to 19.6 dB with an average of 8.8 dB improvement. Bone conduction was measured for 1476 procedures. Closure of the ABG to 10 dB or less was achieved in 51% of the ears and to less than 20 dB in 89% of the ears. Sixty‐one percent of patients with preoperatively deteriorated hearing experienced improved hearing, but 3% of all patients experienced deteriorated hearing. After the surgery, 93% of the patients were satisfied. Conclusions Hearing results after successful myringoplasty surgery are often favourable, but although the tympanic membrane is healed, hearing improvement is not guaranteed, and hearing deterioration can also occur.