Repeated Audiometry After Bacterial Meningitis: Consequences for Future Management

Objective: Sensorineural hearing loss is a common sequela of bacterial meningitis. The objective of this study is to delineate the incidence and course of hearing loss after bacterial meningitis. Study Design: Retrospective cohort study. Setting: Tertiary referral center. Patients: Data of 655 patients who suffered from bacterial meningitis between 1985 and 2015 were analyzed. Interventions: None. Main Outcome Measurements: Availability of audiometric data, incidence of hearing loss, and onset and course of hearing loss. Results: In this cohort the incidence of hearing loss (>25 dB) was 28% (95% confidence interval 23–34%). The incidence of profound hearing loss (>80 dB) was 13% (95% confidence interval 10–18%). Normal hearing at the first assessment after treatment for meningitis remained stable over time in all these patients. In 19 of the 28 patients with diagnosed hearing loss, the hearing level remained stable over time. Hearing improved in six patients and deteriorated in two patients. One patient showed a fluctuating unilateral hearing loss. Conclusion: Audiological tests in patients with bacterial meningitis, especially children, should be started as soon as possible after the acute phase is over. As we found no deterioration of initial normal hearing after bacterial meningitis, repeated audiometry seems indicated only for those with diagnosed hearing loss at first assessment. This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. https://ift.tt/OBJ4xP Address correspondence and reprint requests to Marc P. van der Schroeff, Ph.D., Department of Otorhinolaryngology and Head and Neck Surgery, Erasmus Medical Center, Room SP-1455, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; E-mail: m.vanderschroeff@erasmusmc.nl This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors. The authors disclose no conflicts of interest. Copyright © 2018 by Otology & Neurotology, Inc. Image copyright © 2010 Wolters Kluwer Health/Anatomical Chart Company

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