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2nd International Conference and Expo on Audiology and Deaf Studies

Las Vegas, USA

Rashid Sheikh

Rashid Sheikh

Aga Khan University,Pakistan

Title: Ossicular Chain Erosion in Chronic Suppurative Otitis Media: Pre-operative Predictors

Biography

Biography: Rashid Sheikh

Abstract

OBJECTIVE: Ossicular discontinuity may result from chronic otitis media and usually detected intra-operatively. Our objective is to determine if preoperative audiogram could predict preoperatively the presence of ossicular discontinuity.

METHODS: A prospective cohort study was run on patients aged 12 to 75 operated for non-cholesteatomous chronic otitis media. Pre-operative audiogram was analyzed to measure frequency specific air-bone gap (ABG) cut-off values. Intraoperatively, ossicular chain integrity was carefully checked. Logistic regression analysis was done to have a predictive model.

RESULTS: 270 patients (306 ears) were included.  Frequency specific ABG cut-off values can predict ossicular discontinuity, namely: high ABGs at 1000 Hz (>27.5dB) and 2000 Hz (>17.5dB) are the most reliable variables associated with ossicular discontinuity.

CONCLUSION: Preoperative audiograms can predict presence of ossicular discontinuity in chronic suppurative otitis media.