Title of article :
The Effect of Cochlear Implantation on the Improvement of the Auditory Performance in 2-7 Years old Children, Shiraz 2004-2008
Author/Authors :
Hashemi, Basir ENT Department - Shiraz University of Medical Sciences, Shiraz, IR Iran , Rajaeefard, Abdolreza Epidemiology Department - Shiraz University of Medical Sciences, Shiraz, IR Iran , Norouzpour, Hasan Epidemiology Department - Shiraz University of Medical Sciences, Shiraz, IR Iran , Tabatabaee, Hamid Reza Epidemiology Department - Shiraz University of Medical Sciences, Shiraz, IR Iran , Monshizadeh, Leila Fars Cochlear Implantation Center, Shiraz, IR Iran
Abstract :
Background: Hearing loss is the most common sensorineural deficiency in human beings. Cochlear implantation is introduced worldwide
to treat the severe to profound sensorineural hearing loss, and can result in both speech comprehension and production. Objectives: The present study aims to determine the effect of cochlear implantation on the improvement of the auditory performance in 2-7
years old children. Patients and Methods: The present follow-up study is a kind of cohort study which was conducted on 98 children between 2-7 years old
who had referred to Fars Cochlear Implantation Center. The patients’ information was gathered from their profiles both before and after the
operation. The auditory performance score was obtained in 3 stages; 6 months, 1 year, and 2 years after the cochlear implantation through
the Cap test. The data was analyzed using the nonparametric Friedman test as well as Mann-Withney, Kruskal-Wallis, and Spearman's Ranks
Correlation coefficients. Results: The mean and the median of the auditory performance score of the children who had undergone the cochlear implantation revealed
a significant improvement from 6 months to 1 year, and 2 years after the implantation. It showed a significant statistical association between
implantation age, type of hearing loss, regular reference, and the length of being present in the rehabilitation program with the auditory
performance. It showed no significant association between sex, mother’s level of education, being monolingual or bilingual, and family size
with the auditory performance. Conclusions: This study revealed that the type of hearing loss, Presence in the rehabilitation program, and the age of cochlear implantation
can be major prognostic factors of the response to the treatment, then the country’s health policy makers and health planners must
executively take into account the infants’ hearing screening program during the first 6 month of age.
Keywords :
Cochlear Implantation , Hearing
Journal title :
Astroparticle Physics