Correlation of otosclerosis grading on computed tomography with stapes surgery outcomes

Luís Rio Rodrigues; Andrea Gaspar; António Trigueiros Cunha; Filipa Ruas Morgado; João Barbosa; Alberto Santos; Carlos Macor

doi:10.34631/sporl.2041

Authors

Luís Rio Rodrigues Hospital Beatriz Ângelo, Loures, Portugal https://orcid.org/0000-0001-9905-0638
Andrea Gaspar Hospital Beatriz Ângelo, Loures, Portugal https://orcid.org/0000-0001-8236-5182
António Trigueiros Cunha Hospital Beatriz Ângelo, Loures, Portugal https://orcid.org/0009-0001-0313-3840
Filipa Ruas Morgado Hospital Beatriz Ângelo, Loures, Portugal https://orcid.org/0000-0001-5853-9170
João Barbosa Hospital Beatriz Ângelo, Loures, Portugal https://orcid.org/0009-0002-2617-380X
Alberto Santos Hospital Beatriz Ângelo, Loures, Portugal https://orcid.org/0000-0003-1148-0882
Carlos Macor Hospital Beatriz Ângelo, Loures, Portugal https://orcid.org/0000-0002-6917-3968

DOI:

https://doi.org/10.34631/sporl.2041

Keywords:

Otosclerosis, Stapedial Surgery, Computed Tomography

Abstract

Objectives: To investigate whether computed tomography (CT) findings in patients with otosclerosis influence the audiometric prognosis after stapedial surgery.
Study design: Retrospective.
Material and methods: Patients undergoing stapes surgery, who had undergone prior ear CT and pre- and postoperative pure-tone audiometry (PTA), were included. The degree of otosclerosis on CT was classified according to the Symons and Fanning scale. Therapeutic success was defined as an air-bone gap ≤10 dB HL.
Results: The surgical success rate was 91%, with an average improvement of 6.9 dB HL in bone conduction after stapes surgery. Similar results were found in patients with cochlear foci, grades 2-3, on CT (6.5 dB HL).
Conclusion: The presence of cochlear otosclerosis foci on CT does not seem to influence postoperative audiometric outcomes.

References

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Correlation of otosclerosis grading on computed tomography with stapes surgery outcomes

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