Determinants of hearing loss severity in tympanic membrane perforations in a sub-Saharan African setting.

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Determinants of hearing loss severity in tympanic membrane perforations in a sub-Saharan African setting.

J Laryngol Otol. 2018 Nov 09;:1-5

Authors: Choffor-Nchinda E, Djomou F, Meva'a Biouele RC, Mindja D, Bola A, Kewe I, Vokwely JE, Njock R

Abstract
BACKGROUND: Factors specific to sub-Saharan Africa could have an impact on tympanic membrane perforation characteristics. Obtaining precise information on these characteristics and determinants of hearing loss severity would enable better management.
OBJECTIVE: To determine the relationship between characteristics of tympanic membrane perforation and subsequent hearing impairment.
METHODS: A cross-sectional study of consenting patients presenting with tympanic membrane perforation was conducted. They were examined using otoendoscopy with a digital camera to obtain precise measurements, followed by pure tone audiometry.
RESULTS: Eighty-six cases of tympanic membrane perforation were included. Mean tympanic membrane perforation proportion was 34.1 ± 18.4 per cent. Medium-sized tympanic membrane perforations were predominant (47.7 per cent). Median tympanic membrane perforation duration was 20 years. Tympanic membrane perforation size was found to be a predictor of hearing loss severity (odds ratio = 2.5, 95 per cent confidence interval = 1.02-6.13, p = 0.04).
CONCLUSION: Tympanic membrane perforation size was a predictor of hearing loss severity in our setting. Site, duration and aetiology seem to have no impact on hearing loss severity.

PMID: 30409241 [PubMed - as supplied by publisher]

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