Does bilateral otosclerosis make pre-operative bone conduction more inaccurate?
Objectives: To assess whether bilateral otosclerosis renders pre-operative bone conduction more inaccurate by increasing the Carhart effect. Methods: Retrospective review of a database of pre and post-operative audiograms of 745 ears with otosclerosis treated with stapedectomy from 2013 to 2020 in a...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Journal of Otology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1672293020300623 |
| _version_ | 1818428914339414016 |
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| author | Fiona McClenaghan Jeremy Lavy |
| author_facet | Fiona McClenaghan Jeremy Lavy |
| author_sort | Fiona McClenaghan |
| collection | DOAJ |
| description | Objectives: To assess whether bilateral otosclerosis renders pre-operative bone conduction more inaccurate by increasing the Carhart effect. Methods: Retrospective review of a database of pre and post-operative audiograms of 745 ears with otosclerosis treated with stapedectomy from 2013 to 2020 in a tertiary centre. Main outcome measures: Change in bone conduction after stapedectomy for otosclerosis in: unilateral otosclerosis (U1); bilateral otosclerosis undergoing first side surgery (B1); bilateral otosclerosis undergoing second side surgery (B2). The magnitude of change in bone conduction post-operatively within and between each group. Results: The average difference in pre and post-operative bone conduction was significant within in all groups (T-stat > 2 and P-value <0.05) with the greatest change observed in the U1 group. Analysis of average change in bone conduction between groups did not reach statistical significance (P-value = 0.37). Analysis of change per frequency demonstrated the greatest change in bone conduction post-operatively at 2000 Hz in all groups. The magnitude of change at 2000 Hz was the greatest in the bilateral groups; however, it did not reach statistical significance when compared to the unilateral group (P-value = 0.36). Conclusions: This is the first study in the literature to assess the accuracy of pre-operative bone conduction in bilateral versus unilateral otosclerosis. There is no evidence that pre-operative bone conduction in bilateral otosclerosis is more inaccurate than in unilateral disease. In order to assess accuracy of pre-operative bone conduction in otosclerosis a reliable method of assessing post-operative bone conduction is required, without assumption of its equivalence to cochlear reserve. |
| first_indexed | 2024-12-14T15:09:11Z |
| format | Article |
| id | doaj.art-c741437cb70e459aba7d6baeaef936e1 |
| institution | Directory Open Access Journal |
| issn | 1672-2930 |
| language | English |
| last_indexed | 2024-12-14T15:09:11Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Otology |
| spelling | doaj.art-c741437cb70e459aba7d6baeaef936e12022-12-21T22:56:37ZengElsevierJournal of Otology1672-29302021-01-0116115Does bilateral otosclerosis make pre-operative bone conduction more inaccurate?Fiona McClenaghan0Jeremy Lavy1Corresponding author.; The Royal National Throat Nose and Ear Hospital, 330 Grays Inn Road, London, WC1X 8DA, United KingdomThe Royal National Throat Nose and Ear Hospital, 330 Grays Inn Road, London, WC1X 8DA, United KingdomObjectives: To assess whether bilateral otosclerosis renders pre-operative bone conduction more inaccurate by increasing the Carhart effect. Methods: Retrospective review of a database of pre and post-operative audiograms of 745 ears with otosclerosis treated with stapedectomy from 2013 to 2020 in a tertiary centre. Main outcome measures: Change in bone conduction after stapedectomy for otosclerosis in: unilateral otosclerosis (U1); bilateral otosclerosis undergoing first side surgery (B1); bilateral otosclerosis undergoing second side surgery (B2). The magnitude of change in bone conduction post-operatively within and between each group. Results: The average difference in pre and post-operative bone conduction was significant within in all groups (T-stat > 2 and P-value <0.05) with the greatest change observed in the U1 group. Analysis of average change in bone conduction between groups did not reach statistical significance (P-value = 0.37). Analysis of change per frequency demonstrated the greatest change in bone conduction post-operatively at 2000 Hz in all groups. The magnitude of change at 2000 Hz was the greatest in the bilateral groups; however, it did not reach statistical significance when compared to the unilateral group (P-value = 0.36). Conclusions: This is the first study in the literature to assess the accuracy of pre-operative bone conduction in bilateral versus unilateral otosclerosis. There is no evidence that pre-operative bone conduction in bilateral otosclerosis is more inaccurate than in unilateral disease. In order to assess accuracy of pre-operative bone conduction in otosclerosis a reliable method of assessing post-operative bone conduction is required, without assumption of its equivalence to cochlear reserve.http://www.sciencedirect.com/science/article/pii/S1672293020300623OtosclerosisStapedectomyHearing lossBone conduction |
| spellingShingle | Fiona McClenaghan Jeremy Lavy Does bilateral otosclerosis make pre-operative bone conduction more inaccurate? Journal of Otology Otosclerosis Stapedectomy Hearing loss Bone conduction |
| title | Does bilateral otosclerosis make pre-operative bone conduction more inaccurate? |
| title_full | Does bilateral otosclerosis make pre-operative bone conduction more inaccurate? |
| title_fullStr | Does bilateral otosclerosis make pre-operative bone conduction more inaccurate? |
| title_full_unstemmed | Does bilateral otosclerosis make pre-operative bone conduction more inaccurate? |
| title_short | Does bilateral otosclerosis make pre-operative bone conduction more inaccurate? |
| title_sort | does bilateral otosclerosis make pre operative bone conduction more inaccurate |
| topic | Otosclerosis Stapedectomy Hearing loss Bone conduction |
| url | http://www.sciencedirect.com/science/article/pii/S1672293020300623 |
| work_keys_str_mv | AT fionamcclenaghan doesbilateralotosclerosismakepreoperativeboneconductionmoreinaccurate AT jeremylavy doesbilateralotosclerosismakepreoperativeboneconductionmoreinaccurate |