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Updated: Sep 21, 2025
Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
Published on: October 11, 2024
Cochlear implantation for post-meningitis deafness with cochlear ossification: diagnosis and surgical strategy
Na Zhang1,2, Ruijuan Dong2, Jun Zheng1,2
1Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China.
Background:
Cochlear ossification (CO) after meningitis can cause profound sensorineural hearing loss (SNHL). Cochlear implantation (CI) is the ideal treatment strategy for CO.
Aims:
To explore the strategy for CI in patients with CO after meningitis.
Materials And Methods:
In this retrospective study, the medical records of patients diagnosed with profound SNHL due to CO after meningitis and who underwent CI in our department between September 2010 and September 2021 were collected and reviewed. Their imaging and surgical findings were analyzed.
Results:
The data of 26 patients with unilateral CI were reviewed. All patients underwent preoperative temporal high-resolution computed tomography (HRCT) and 22 patients magnetic resonance imaging (MRI). The sensitivity of HRCT was 61.5% (10/26), whereas that of MRI was 81.8% (18/22). Combined HRCT and MRI achieved a detection rate of 92.3% (24/26). Twenty-two and four patients underwent complete and partial electrode implantations, respectively.
Conclusions And Significance:
Preoperative temporal bone HRCT and MRI are essential for determining whether a patient is suitable for CI and surgical planning. A false-negative diagnosis is possible when diagnosing CO, but combined HRCT and MRI can improve the positive rate of preoperative diagnosis of CO post meningitis. Early CI is recommended.
