Cochlear implants and bacterial meningitis: A speech recognition study in paired samples
نویسندگان
چکیده
INTRODUCTION Cochlear implants may guarantee sound perception and the ability to detect speech at a close-to-normal hearing intensity; however, differences have been observed among implantees in terms of performance on discrimination tests and speech recognition. OBJECTIVE To identify whether patients with post-meningitis deafness perform similarly to patients with hearing loss due to other causes. METHOD A retrospective clinical study involving post-lingual patients who had been using Nucleus-22 or Nucleus-24 cochlear implants for at least 1 year. These patients were matched with respect to age (± 2 years), time since the onset of deafness (± 1 year), and the duration of implant use with implant users who had hearing loss due to other causes. Speech perception was assessed using the Portuguese version of the Latin-American Protocol for the Evaluation of Cochlear Implants. RESULTS The sample consisted of 52 individuals (26 in each of the 2 groups). The post-meningitic group had a median of 18.5 active electrodes. The group with hearing loss due to other causes had a median of 21, but no significant statistical difference was observed (p = 0.07). The results of closed- and open-set speech recognition tests showed great variability in speech recognition between the studied groups. These differences were more pronounced for the most difficult listening tasks, such as the medial consonant task (in the vowel-consonant-vowel format). CONCLUSION Cochlear implant recipients with hearing loss due to bacterial meningitis, who had been using the device for 1 year performed more poorly on closed- and open-set speech recognition tests than did implant recipients with hearing loss due to other causes.
منابع مشابه
Correlation between Auditory Spectral Resolution and Speech Perception in Children with Cochlear Implants
Background: Variability in speech performance is a major concern for children with cochlear implants (CIs). Spectral resolution is an important acoustic component in speech perception. Considerable variability and limitations of spectral resolution in children with CIs may lead to individual differences in speech performance. The aim of this study was to assess the correlation between auditory ...
متن کاملCochlear Implantation after Bacterial Meningitis in Infants Younger Than 9 Months
Objective. To describe the audiological, anesthesiological, and surgical key points of cochlear implantation after bacterial meningitis in very young infants. Material and Methods. Between 2005 and 2010, 4 patients received 7 cochlear implants before the age of 9 months (range 4-8 months) because of profound hearing loss after pneumococcal meningitis. Results. Full electrode insertions were ach...
متن کاملThe Grammatical Abilities in a Speech Sample of Persian-speaking Children With Cochlear Implants
Objectives: Studies reported that children with Cochlear Implant (Cl) presented difficulties in grammatical acquisition. The Persian language is inflectional. The present study aimed to compare word-level inflections in the language samples of CI recipients and healthy-hearing children. Methods: Thirty children were recruited in this descriptive-analytical cross-sectional study. The Language S...
متن کاملSpeech Perception in Children with Cochlear Implants
Cochlear implants provide access to the speech signal in children with hearing loss that often cannot benefit from acoustic hearing aids. However, despite the numerous positive results in pediatric cochlear implantation, published data still indicated a wide range of performance among implant recipients. Hence, a need to study the possible variables that can affect performance, could account fo...
متن کاملComparison of the high-frequency morpho-syntactic structures of cochlear implant children and children with normal hearing aged 4-6 years
Introduction: Children with cochlear implants experience problems at all language domains, and have more problems in morpho-syntactic skills than others domains. Considering the importance of morphology and syntax in developing of communication skills of children, this study compared the use of high-frequency morpho-syntactic structures among 4-6 years old children with cochlear implants and ty...
متن کامل