- Email: [email protected]
C103 Performance after revision surgery for cochlear implant soft failures
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Abstracts, ESPCI 2011 / International Journal of Pediatric Otorhinolaryngology 75 (2011) 33–57
as compared with the balanced (16.7%). Finally, we discussed this implication for supporting them concerning linguistic and academic development. C103 Performance after revision surgery for cochlear implant soft failures N. Yehudai1,2 , T. Shpak1,2 , M. Luntz1,2 . 1 Department of Otolaryngology-Head and Neck Surgery, Cochlear Implant Program, Bnai Zion Medical Center, Haifa, Israel; 2 Technion, Bruce Rappaport Faculty of Medicine, Haifa, Israel Aim: To evaluate auditory performance of recipients presenting with CI soft failure following revision surgery. Material and Methods: A prospective study, including 21 recipients, mean age at CI = 8.2 years (range, 1.4–36). The types of CI were 8 ABC, 11 Nucleus and 2 Med-el. Soft failures were categorized as: decline in performance (13), non-auditory sensations (NAS) or aversive auditory symptoms (13) and 5 recipients with combined conditions. Results: Following re-implantation, 16 recipients (76%) regained better CI usage, 9 recipients Improved speech performance. Aversive auditory symptoms were resolved in 10 recipients and those with combined problems demonstrated improvement in both conditions. Average time from initial occurrence of problem to reimplantation was 1.4 years (range, 0.16–2.58). Conclusions: Following re-implantation the majority of recipients gained improvement, justifying efforts now required by clinicians, engineers and implant companies to develop more sensitive assessment tools to shorten the time interval between diagnosis of soft failure and re-implantation. C104 Outocome and complications of cochlear implantation in children with Pendred syndrome G. Kontorinis, Th. Lenarz, A. Lesinski-Schiedat. Department of Otorhinolaryngology, Hanover Medical University, Germany Aim: To present the long-term outcome of cochlear implantation in children with Pendred syndrome (PS). Material and Methods: Data of children with PS, who had undergone cochlear implantation between 2002–2008 were evaluated. Severe early childhood hearing loss, cochlear dysplasia, goiter and abnormal perchlorate discharge test were the essential criteria for PS diagnosis. Results: Four children with PS underwent five cochlear implantations, as one child was bilaterally, sequentially treated. The average postoperative follow-up duration was 5.5 years. Enlarged vestibular aqueduct and Mondini dysplasia were the most common anatomical findings. Cerebrospinal fluid gusher was the most frequent intraoperative complication, extending the surgery’s duration. The hearing result was above average. Conclusions: The outcome of cochlear implantation in children with PS is favorable. Moreover, it remains constant over time without being affected by the thyroid gland dysfunction. The small number of cochlear implant recipients with PS seems to be related to undiagnosed cases. C105 Grammar-in-noise perception deficits in young cochlear-implanted children M. Coene1,3 , A. Hammer1 , J. Rooryck2 , K. Daemers3 , K. Schauwers3 , G. De Ceulaer3 , B. Vaerenberg3 , P. Govaerts3 . 1 Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; 2 Leiden Centre for Linguistics, Leiden University, Leiden, The Netherlands; 3 The Eargroup, Antwerp-Deurne, Belgium Aim: To investigate whether delays in the production of spoken language grammar in young cochlear implanted (CI) children may result from perception deficits of grammatical morphemes in noise conditions.
Materials and Method: The perception of bound morphemes was assessed by comparing identification of word-endings in morphologically complex words in quiet and in the presence of stationary and temporally-fluctuating masking noise in 10 young Dutch-speaking CI-children and 10 age-matched hearing peers. Results: For the perception of grammatical morphemes in quiet, no significant differences were found between both populations. As for the noise conditions, hearing children showed better morpheme identification in flucuating than in stationary noise, whereas CIchildren did not. Conclusion: Contrary to hearing children, CI-children do not experience release from masking. They are not able to pick up grammatical information in the valleys of fluctuating noise. The observed perception deficit may explain particular delays in spoken language grammar found in some young CI-children. Contact: [email protected] C106 Pitch perception in cochlear implanted and classical hearing aid users K. Schauwers1 , M. Coene2 , W. Heeren3 , L. del Bo4 , A. Pascu5 , P. Govaerts6 . 1 The Eargroup, Antwerp-Deurne, Belgium; 2 Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; 3 Leiden University, Leiden, The Netherlands; 4 Del Bo Tecnologia Per L’Ascolto, Milan, Italy; 5 Bucharest University, Bucharest, Romania; 6 The Eargroup & University of Antwerp, Antwerp, Belgium Aim: To assess pitch perception in different populations of hearingimpaired subjects suffering from sensorineural hearing loss in order to identify possible poor temporal coding. Materials and Method: Part of the A§E2009® psychoacoustic test suite was used to assess the perception of pitch changes in adults with a hearing loss in the high (N = 77) and low (N = 23) frequencies and in 21 CI-users. Test stimuli consisted of isolated synthetic complexes and of pseudo-words/sentences mimicking linguistically relevant contexts. Results: Hearing-impaired subjects, particularly CI-users and those with low-frequency hearing loss, performed significantly worse on all tests in comparison to hearing adults. Conclusions: CI-users and classical hearing aided listeners with low-frequency loss experience great difficulty to perceive changes in fundamental frequency. The A§E2009® intonation tests are a useful diagnostic tool to distinguish hearing impaired subjects by their capacity to process temporal information and to evaluate the impact of auditory rehabilitation, hearing aids or electro-acoustic stimulation. C107 Delays in prosodic development for cochlear implanted children M. Coene1,3 , A. Hammer1 , F. Volpato2 , K. Schauwers3 , S. De Niel3 , P. Govaerts3 . 1 Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; 2 Dipartimento Scienze del Linguaggio, Ca’Foscari, Venice, Italy; 3 The Eargroup, Antwerp-Deurne, Belgium Aim: To assess the prosodic development of Cochlear-Implanted (CI) and classical Hearing-Aided (HA) children in comparison with a control group of typically developing hearing peers (TD). Material and Methods: Part of the A§E2009® psychoacoustic test suite was used to assess perception of intonation patterns by means of discrimination and identification tasks in 13 CI- and 8 HA-children and compared to outcomes of 271 TD-children between 6 and 13 years of age. Results: The just noticeable difference (JND) of changes in fundamental frequency in prosodic discrimination and identification tasks in CI- and HA-children was significantly higher than the one found in TD-peers. Conclusion: Intonation patterns are generally acquired very early in the course of language development. Many properties are largely established by the age of 5. Increased JNDs up to the age of 13 in CI-
Abstracts, ESPCI 2011 / International Journal of Pediatric Otorhinolaryngology 75 (2011) 33–57
as compared with the balanced (16.7%). Finally, we discussed this implication for supporting them concerning linguistic and academic development. C103 Performance after revision surgery for cochlear implant soft failures N. Yehudai1,2 , T. Shpak1,2 , M. Luntz1,2 . 1 Department of Otolaryngology-Head and Neck Surgery, Cochlear Implant Program, Bnai Zion Medical Center, Haifa, Israel; 2 Technion, Bruce Rappaport Faculty of Medicine, Haifa, Israel Aim: To evaluate auditory performance of recipients presenting with CI soft failure following revision surgery. Material and Methods: A prospective study, including 21 recipients, mean age at CI = 8.2 years (range, 1.4–36). The types of CI were 8 ABC, 11 Nucleus and 2 Med-el. Soft failures were categorized as: decline in performance (13), non-auditory sensations (NAS) or aversive auditory symptoms (13) and 5 recipients with combined conditions. Results: Following re-implantation, 16 recipients (76%) regained better CI usage, 9 recipients Improved speech performance. Aversive auditory symptoms were resolved in 10 recipients and those with combined problems demonstrated improvement in both conditions. Average time from initial occurrence of problem to reimplantation was 1.4 years (range, 0.16–2.58). Conclusions: Following re-implantation the majority of recipients gained improvement, justifying efforts now required by clinicians, engineers and implant companies to develop more sensitive assessment tools to shorten the time interval between diagnosis of soft failure and re-implantation. C104 Outocome and complications of cochlear implantation in children with Pendred syndrome G. Kontorinis, Th. Lenarz, A. Lesinski-Schiedat. Department of Otorhinolaryngology, Hanover Medical University, Germany Aim: To present the long-term outcome of cochlear implantation in children with Pendred syndrome (PS). Material and Methods: Data of children with PS, who had undergone cochlear implantation between 2002–2008 were evaluated. Severe early childhood hearing loss, cochlear dysplasia, goiter and abnormal perchlorate discharge test were the essential criteria for PS diagnosis. Results: Four children with PS underwent five cochlear implantations, as one child was bilaterally, sequentially treated. The average postoperative follow-up duration was 5.5 years. Enlarged vestibular aqueduct and Mondini dysplasia were the most common anatomical findings. Cerebrospinal fluid gusher was the most frequent intraoperative complication, extending the surgery’s duration. The hearing result was above average. Conclusions: The outcome of cochlear implantation in children with PS is favorable. Moreover, it remains constant over time without being affected by the thyroid gland dysfunction. The small number of cochlear implant recipients with PS seems to be related to undiagnosed cases. C105 Grammar-in-noise perception deficits in young cochlear-implanted children M. Coene1,3 , A. Hammer1 , J. Rooryck2 , K. Daemers3 , K. Schauwers3 , G. De Ceulaer3 , B. Vaerenberg3 , P. Govaerts3 . 1 Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; 2 Leiden Centre for Linguistics, Leiden University, Leiden, The Netherlands; 3 The Eargroup, Antwerp-Deurne, Belgium Aim: To investigate whether delays in the production of spoken language grammar in young cochlear implanted (CI) children may result from perception deficits of grammatical morphemes in noise conditions.
Materials and Method: The perception of bound morphemes was assessed by comparing identification of word-endings in morphologically complex words in quiet and in the presence of stationary and temporally-fluctuating masking noise in 10 young Dutch-speaking CI-children and 10 age-matched hearing peers. Results: For the perception of grammatical morphemes in quiet, no significant differences were found between both populations. As for the noise conditions, hearing children showed better morpheme identification in flucuating than in stationary noise, whereas CIchildren did not. Conclusion: Contrary to hearing children, CI-children do not experience release from masking. They are not able to pick up grammatical information in the valleys of fluctuating noise. The observed perception deficit may explain particular delays in spoken language grammar found in some young CI-children. Contact: [email protected] C106 Pitch perception in cochlear implanted and classical hearing aid users K. Schauwers1 , M. Coene2 , W. Heeren3 , L. del Bo4 , A. Pascu5 , P. Govaerts6 . 1 The Eargroup, Antwerp-Deurne, Belgium; 2 Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; 3 Leiden University, Leiden, The Netherlands; 4 Del Bo Tecnologia Per L’Ascolto, Milan, Italy; 5 Bucharest University, Bucharest, Romania; 6 The Eargroup & University of Antwerp, Antwerp, Belgium Aim: To assess pitch perception in different populations of hearingimpaired subjects suffering from sensorineural hearing loss in order to identify possible poor temporal coding. Materials and Method: Part of the A§E2009® psychoacoustic test suite was used to assess the perception of pitch changes in adults with a hearing loss in the high (N = 77) and low (N = 23) frequencies and in 21 CI-users. Test stimuli consisted of isolated synthetic complexes and of pseudo-words/sentences mimicking linguistically relevant contexts. Results: Hearing-impaired subjects, particularly CI-users and those with low-frequency hearing loss, performed significantly worse on all tests in comparison to hearing adults. Conclusions: CI-users and classical hearing aided listeners with low-frequency loss experience great difficulty to perceive changes in fundamental frequency. The A§E2009® intonation tests are a useful diagnostic tool to distinguish hearing impaired subjects by their capacity to process temporal information and to evaluate the impact of auditory rehabilitation, hearing aids or electro-acoustic stimulation. C107 Delays in prosodic development for cochlear implanted children M. Coene1,3 , A. Hammer1 , F. Volpato2 , K. Schauwers3 , S. De Niel3 , P. Govaerts3 . 1 Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; 2 Dipartimento Scienze del Linguaggio, Ca’Foscari, Venice, Italy; 3 The Eargroup, Antwerp-Deurne, Belgium Aim: To assess the prosodic development of Cochlear-Implanted (CI) and classical Hearing-Aided (HA) children in comparison with a control group of typically developing hearing peers (TD). Material and Methods: Part of the A§E2009® psychoacoustic test suite was used to assess perception of intonation patterns by means of discrimination and identification tasks in 13 CI- and 8 HA-children and compared to outcomes of 271 TD-children between 6 and 13 years of age. Results: The just noticeable difference (JND) of changes in fundamental frequency in prosodic discrimination and identification tasks in CI- and HA-children was significantly higher than the one found in TD-peers. Conclusion: Intonation patterns are generally acquired very early in the course of language development. Many properties are largely established by the age of 5. Increased JNDs up to the age of 13 in CI-