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Σάββατο 10 Φεβρουαρίου 2018

Cochlear implantation in children with auditory neuropathy spectrum disorder: A multicenter study on auditory performance and speech production outcomes

Publication date: Available online 7 February 2018
Source:International Journal of Pediatric Otorhinolaryngology
Author(s): Ahmad Daneshi, Marjan Mirsalehi, Seyed Basir Hashemi, Mohammad Ajalloueyan, Mohsen Rajati, Mohammad Mahdi Ghasemi, Hesamaldin Emamdjomeh, Alimohamad Asghari, Shabahang Mohammadi, Mohammad Mohseni, Saleh Mohebbi, Mohammad Farhadi
ObjectivesTo evaluate the auditory performance and speech production outcome in children with auditory neuropathy spectrum disorder (ANSD). The effect of age on the outcomes of the surgery at the time of implantation was also evaluated.MethodsCochlear implantation was performed in 136 children with bilateral severe-to- profound hearing loss due to ANSD, at four tertiary academic centers. The patients were divided into two groups based on the age at the time of implantation; Group I: Children ≤24 months, and Group II: subjects >24 months. The categories of auditory performance (CAP) and speech intelligibility rating (SIR) scores were evaluated after the first and second years of implantation. The differences between the CAP and SIR scores in the two groups were assessed.ResultsThe median CAP scores improved significantly after the cochlear implantation in all the patients (p value < 0.001). The improvement in the CAP scores during the first year in Group II was greater than Group I (p value: 0.007), but the improvement in CAP scores tended to be significantly higher in patients who were implanted at ≤24 months (p value < 0.001). There was no significant difference between two groups in SIR scores at first-year and second-year follow-ups. The evaluation of the SIR improvement revealed significantly higher values for Group I during the second-year follow-up (p value: 0.003).ConclusionThe auditory performance and speech production skills of the children with ANSD improved significantly after cochlear implantation, and this improvement was affected by age at the time of implantation.



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