What Can Long-Term Attendance at Programming Appointments Tell Us About Pediatric Cochlear Implant Recipients?

OBJECTIVE: This study sought to understand factors linked to long-term engagement with available post-implant "mapping" review services for individuals who received cochlear implants (CI)(s) as children. STUDY DESIGN: Demographics, communication outcomes, and appointment attendance records from an unselected group of 400 participants who received CI(s) between 1985 and 2009 were analyzed. RESULTS: After 5 years post-implant, 85.75% (n = 343) of participants attended the clinic for "mapping" appointments between March 2011 and March 2014, but 14.25% (n = 57) had not attended "mapping" for more than 3 years before March 2014. Findings showed that participants who did attend routine follow-up "mapping" appointments received their first implants at a significantly younger age (mean, 3.73 yr; standard deviation [SD], 3.39) and demonstrated better receptive language performance (mean standard score, 72; SD, 21.2) and better speech perception scores (mean open-set words, 54.1%; SD, 24.4; phonemes, 77.5%; SD, 15.8) suggesting they derived greater benefit from the technology than participants who did not attend (mean age at implant, 6.38 yr; SD, 4.85; mean receptive language standard score, 58.6; SD, 25.6; mean open-set-words, 34.5%; SD, 24.5; phonemes, 62.7.4%; SD, 23.4). CONCLUSIONS: The present study identified a profile of pediatric CI recipients who continue to attend follow-up review appointments after 5 years of device experience. Individuals who were non-attenders tended to include part-time and non-users of the technology. This could be due to a range of factors including the use of past speech processor technology (at first 12 months after switch-on), less overall benefit, and the presence of additional special needs.

Long-term Communication Outcomes for Children Receiving Cochlear Implants Younger Than 12 Months: A Multicenter Study.

OBJECTIVE: Examine the influence of age at implant on speech perception, language, and speech production outcomes in a large unselected paediatric cohort. STUDY DESIGN: This study pools available assessment data (collected prospectively and entered into respective databases from 1990 to 2014) from three Australian centers. PATIENTS: Children (n = 403) with congenital bilateral severe to profound hearing loss who received cochlear implants under 6 years of age (excluding those with acquired onset of profound hearing loss after 12 mo, those with progressive hearing loss and those with mild/moderate/severe additional cognitive delay/disability). MAIN OUTCOME MEASURE(S): Speech perception; open-set words (scored for words and phonemes correct) and sentence understanding at school entry and late primary school time points. Language; PLS and PPVT standard score equivalents at school entry, CELF standard scores. Speech Production; DEAP percentage accuracy of vowels, consonants, phonemes-total and clusters, and percentage word-intelligibility at school entry. RESULTS: Regression analysis indicated a significant effect for age-at-implant for all outcome measures. Cognitive skills also accounted for significant variance in all outcome measures except open-set phoneme scores. ANOVA with Tukey pairwise comparisons examined group differences for children implanted younger than 12 months (Group 1), between 13 and 18 months (Group 2), between 19 and 24 months (Group 3), between 25 and 42 months (Group 4), and between 43 and 72 months (Group 5). Open-set speech perception scores for Groups 1, 2, and 3 were significantly higher than Groups 4 and 5. Language standard scores for Group 1 were significantly higher than Groups 2, 3, 4, and 5. Speech production outcomes for Group 1 were significantly higher than scores obtained for Groups 2, 3, and 4 combined. Cross tabulation and χ2 tests supported the hypothesis that a greater percentage of Group 1 children (than Groups 2, 3, 4, or 5) demonstrated language performance within the normative range by school entry. CONCLUSIONS: Results support provision of cochlear implants younger than 12 months of age for children with severe to profound hearing loss to optimize speech perception and subsequent language acquisition and speech production accuracy.