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Related Experiment Video

Updated: Jun 17, 2026

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice
09:06

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice

Published on: January 9, 2019

Cochlear implantation in postmeningitic deafness.

Daniel Philippon1, François Bergeron, Pierre Ferron

  • 1Département d'otorhinolaryngologie et de chirurgie cervico-faciale, Hôtel-Dieu-de-Québec du Centre Hospitalier Universitaire de Québec, Université Laval, Québec, Canada. phidan19@me.com

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology
|January 6, 2010
PubMed
Summary

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CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne·2023

Bacterial meningitis can cause profound hearing loss. Early cochlear implantation (CI) is recommended for post-meningitic deafness to improve speech discrimination outcomes.

Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Pediatrics

Background:

  • Bacterial meningitis is a leading cause of acquired bilateral profound sensorineural hearing loss in children.
  • Post-meningitic hearing loss often leads to labyrinthitis ossificans, complicating cochlear implantation.
  • Management guidelines for profound hearing loss post-meningitis are needed.

Purpose of the Study:

  • To propose guidelines for managing profound bilateral sensorineural hearing loss following bacterial meningitis.
  • To evaluate outcomes of cochlear implantation in post-meningitic deafness.

Main Methods:

  • Retrospective chart review of 40 patients undergoing cochlear implantation for post-meningitic deafness.
  • Analysis of meningitis cause, preoperative imaging, age, time to implantation, and surgical findings.

Related Experiment Videos

Last Updated: Jun 17, 2026

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice
09:06

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice

Published on: January 9, 2019

  • Classification of intraoperative cochlear ossification.

    • Main Results:

    • Labyrinthitis ossificans was present in 62% of patients at surgery.
    • Significant ossification (Stage II) occurred as early as 21 days post-meningitis.
    • Partial cochlear implant insertion occurred in 9 patients due to ossification.
    • Open-set speech discrimination was achieved by 37% of children and 23% of adults.

    Conclusions:

    • Early cochlear implantation is recommended for patients with profound deafness secondary to meningitis.
    • Prompt intervention may mitigate the effects of labyrinthitis ossificans.
    • Guidelines should emphasize timely evaluation and surgical intervention.