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VOLUME 12 , ISSUE 3 ( September-December, 2020 ) > List of Articles

PROSPECTIVE ARTICLE

Effect of Middle Ear Surgery on Sensorineural Hearing: A Prospective Study of 150 Cases

Baban Kumar, Richa Richa, Vibhor Malhotra, Ayushree Sharma

Keywords : Middle ear surgeries, Pure tone audiometry, Sensorineural hearing loss

Citation Information :

DOI: 10.5005/jp-journals-10003-1357

License: CC BY-NC 4.0

Published Online: 00-12-2020

Copyright Statement:  Copyright © 2020; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Introduction: Chronic otitis media (COM) is one of the most common middle ear diseases for which a patient visits an otolaryngologist. Depending on the type and extent of the disease, various surgical procedures are performed in cases of COM. There is a wide spectrum of postoperative complications that are known to happen after middle-ear surgery, sensorineural hearing loss (SNHL) being one of them. SNHL following middle-ear surgery is an important yet underreported complication and may be caused by acoustic trauma due to drilling and suction or due to manipulation of ossicles. Many contradictory studies have been published to date. With the help of this study, we tried to evaluate SNHL as a complication of middle ear surgeries in our set-up. Materials and methods: A prospective study including 150 patients was conducted for 2 years. Three types of middle ear surgeries were included in the study: tympanoplasty, cortical mastoidectomy, and modified radical mastoidectomy. Pure tone audiometry (PTA) was performed on each patient preoperatively and seventh day and at 3 months postoperatively. The values obtained underwent statistical analysis to obtain p-value. p-value < 0.05 was considered statistically significant. Result: No postoperative SNHL was found and the difference between the preoperative bone conduction threshold values and postoperative values were not found to be statistically significant. Conclusion: From the above study we conclude that though the drilling and suction produce a significant level of noise, there is no statistically significant shift in the bone conduction threshold values.


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