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Published on: January 9, 2019
Cochlear Implantation in Children with Meningitis: A Multicenter Study on Auditory Performance and Speech Production
Mohsen Rajati1, Mohamad Reza Afzalzadeh1, Ahmad Daneshi2
1Sinus and Surgical Endoscopic Research Center, Department of Otorhinolaryngology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Background:
This study aims to evaluate speech production outcomes and auditory performance in children with post-meningitis deafness who were treated with cochlear implants. Additionally, the study assesses the impact of electrode insertion depth on surgical outcomes.".
Methods:
We conducted a study on 66 pediatric patients with bilateral postmeningitis hearing loss who were being prepared for cochlear implantation at four tertiary referral academic institutions. The speech intelligibility rating (SIR) and categories of auditory performance (CAP) were evaluated after the first and second years following implantation. The patients were divided into two groups based on electrode insertion depth: one group had full electrode insertion (more than two-thirds), while the other had partial electrode insertion (less than two-thirds). We compared the SIR and CAP scores between the two groups to assess the impact of electrode insertion depth on outcomes.
Results:
Before implantation, the median CAP score was one, but it improved significantly to six within two years after the procedure (P-value < 0.001). Similarly, the median SIR score before implantation was one, but it improved significantly to three within two years after surgery (P-value < 0.001). However, there was no significant difference between the partial and full electrode insertion groups in terms of CAP and SIR scores during the follow-up evaluations conducted after the first and second years.
Conclusion:
The study found that cochlear implantation significantly improved speech production skills and auditory performance in children with postmeningitis deafness. Importantly, the amount of electrode insertion at the time of implantation did not have a significant impact on the outcomes.
