Résumé
Aim: The objective of this study is to report our experience by investigating the relationship between the extent of lesions on the CT scan and the preoperative and postoperative audiometric results.
Materials and Methods: We conducted a longitudinal retrospective study including 90 surgically confirmed otosclerosis patients (and 150 ears). All patients underwent hearing evaluation through pure-tone audiometry, and preoperatively, they were examined by temporal bone CT scans.
Results: In pure-tone audiometry, we observed predominantly conductive hearing loss (50%) with an average hearing loss of 35.8 db. On CT scans, signs of otosclerosis were identified in 97.3% of cases, with a predominance of Veillon stage II (41.7%). No correlation was found between the degree of hearing loss and radiological classification. The extent of lesions did not affect postoperative audiometric results (p > 0.05).
Conclusion: CT scans provide additional support for positive diagnosis. However, the correlation between radiological lesions and hearing loss, as well as surgical outcomes, was not proven. Thin slice of CT scan may offer valuable insights into the extent of otosclerosis within the inner ear.
Keywords: Otosclerosis, CT scan, Audiometry
