Abstract
Aims
In this study, we attempt to compare the pure tone audiometry findings with ossicular chain status intraoperatively in patients of chronic otitis media.
Materials and methods
102 patients who presented with COM during a period of one year and met the inclusion criteria were included in the study. All patients underwent preoperative pure tone Audiometry and findings were tabulated. All patients were evaluated intraoperatively by the same surgeon and observations were made regarding ossicular chain integrity.
Results
Small central perforation was noted in 10%, medium central perforation in 38.57%, large central perforation in 27.14% and subtotal perforation in 24.28%. 71.56% patients had an intact ossicular chain, of which 94.5% was mucosal disease and 5.5% were squamous disease. 29 cases showed eroded/absent ossicles, out of which, 28 had squamous type and 1 case had central perforation. Ossicular status was classified based on Austin Classification. Conductive hearing loss was found to be maximum where all 3 ossicles were eroded/absent, with a mean AB gap of 45.33 and mean air conduction threshold of 60.33.
Conclusion
There is a good correlation between the hearing threshold of the patient and the status of ossicular chain. Preoperative knowledge of the degree of hearing loss and status of ossicular chain would allow the surgeon to plan proper ossicular reconstruction and give the patient a better advice regarding prognosis of hearing improvement after surgery.
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Maran, R., Meena, K. & George, S.P. Correlation Between Pure Tone Audiometry Values and Middle Ear Ossicular Chain Status in Chronic Otitis Media: Study in a Tertiary Health Care Centre. Indian J Otolaryngol Head Neck Surg (2024). https://doi.org/10.1007/s12070-024-04557-3
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DOI: https://doi.org/10.1007/s12070-024-04557-3