ABSTRACT
Objective To investigate the development of auditory and speech skills and the safety and stability among the prelingually deaf children with Nurotron Venus cochlear implants.Methods A total of 78 cochlear implant subjects were recruited from the first of affiliated hospital of Zhengzhou university.They were divided into 5 groups according to the ages at the time of implantation: group A(between 13 and 24 months), group B(between 25 and 36 months),group C(between 37 and 48 months),group D(between 49 and 72 months),group E(between 73 and 96 months).Children were evaluated by IT-MAIS(group A and B) and MAIS(group C,D and E) before the surgery and 1 month,3 months,6 months, and 12 months after surgery.All children were evaluated by MUSS questionnaires 1 months, 3 months,6 months,and 12 months after surgery.Post-operative cochlear radiographs determine the position of the CIs.The complications and usage of The CIs were followed up.Results The auditory and speech ability of children with CIs improved constantly.The auditory and speech of different groups were statistically significant.All the surgeries of 78 cases Nurotron-Venus cochlear implants were successful.Post-operative cochlear radiographs showed electrodes in the normal position.2 cases had processor failures.The remaining CIs were implanted completely.Conclusion Within 1 year, the ability of auditory and speech improved gradually.The scores of auditory and speech about the small age groups are lower than older children in the early days.There is no influence on the audition in 12 months.Small children's scores of speech are lower than older children in 12 months.The better ability to integrate auditory information is , the better the ability to speak is.The Nurotron CIs work safety and effectively.
ABSTRACT
Objective To evaluate auditory and speech development longitudinally over the first year after co-chlear implantation in prelingual deaf pediatric cochlear implant (CI) recipients .Methods Meaningful auditory inte-gration scale (MAIS) and infant-toddler meaningful auditory integration scale (ITMAIS) were used to evaluate 34 prelingual deaf children between 14 month and 5 years and 10 month before CI and 3 ,6 ,and 12 months after im-plantation .The effects of genders ,age at implantation ,and duration of post -implantation time were evaluated .Re-sults Three MAIS scores were displayed :total ,detection ,and perception .Each score from all the subjects was significantly improved than that before cochlear implantation ,and still getting further better with CI use(P0 .05) .Conclusion After cochlear im-plantation ,a significant increase in auditory capability occurred ,especially in the first 3 months .The factor of gen-der was no influence on auditory development .These results provide preliminary validation of MAIS/IT -MAIS for evaluation of pre -lingual deaf pediatric CI recipients .
ABSTRACT
Objetivos: Conocer y comparar la evolución del rendimiento auditivo de los pacientes menores de 2 años (prelinguales) y entre 2 a 5 años (perilinguales) con hipoacusia neurosensorial severa a profunda que fueron intervenidos con la colocación del implante coclear. Materiales y métodos: Estudio descriptivo de pacientes del programa de implante coclear del Hospital Militar Central y el Hospital Universitario Clínica San Rafael. Se incluyeron pacientes prelinguales y perilinguales a los cuales se les realizó seguimiento del rendimiento auditivo con las pruebas de IT-MAIS y otthingham durante 3, 6 y 12 meses posimplante durante los años 2001 a 2008. Resultados: La población blanco fueron 84 pacientes de los cuales 53 pacientes cumplieron con los criterios de inclusión, 13 fueron prelinguales y 40 en proceso de adquisición del lenguaje o perilinguales, las dos pruebas alcanzaron un valor estadísticamente significativo con p menor de 0.05, a favor del grupo de pacientes prelinguales, es decir, que la intervención con el implante coclear en los pacientes prelinguales tiene mejor resultado que en los pacientes perilinguales. Conclusión: los pacientes prelinguales con implante coclear tienen mejor rendimiento auditivo que los pacientes perilinguales al año de seguimiento.
Objectives: To get to know and compare the evolution of auditory performance of children younger tan 2 years old (prelingual) and children between two and five years old (perilingual) with severe to profound sensorineural hearing loss that were implanted with a cochlear implant. Material and Methods: A descriptive study of patients that are part of the cochlear implant program at Hospital Militar central and at Hospital Universitario Clínica San Rafael. Prelingual and perilingual patients were included for follow - up of the auditory performance with the following tests IT-MAIS and Nottingham for 3, 6 and 12 months after the implant from 2001 to 2008. Results: The target population was 84 patients out of which 53 patients complied with the inclusion criteria, 13 of which were prelingual and 40 were in the process of acquiring the language or perilingual. Both tests reached a statistically significant value with p lower than 0.05, in favor of the prelingual group of patients. That is, the surgery with a cochlear implant has a better result in prelingual patients than it does in perilingual patients. Conclusion: perilingual patients with cochlear implants have a better auditory performance than perilingual patients after a follow-up of a year.