Prediction of Cochlear Implant Outcomes in Patients With Prelingual Deafness

Kang, Dong Hoon; Lee, Myoung Jin; Lee, Kyu-Yup; Lee, Sang Heun; Jang, Jeong Hun

doi:10.21053/ceo.2015.01487

Cited by 21 publications

(10 citation statements)

References 24 publications

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“…Although BCNC stenosis or atresia is used to diagnose CND, BCNC width was not significantly correlated with ECAP responses in our study, indicating that it cannot be used to predict the degree of CND. Several previous studies have reported worse CI outcomes among patients with BCNC stenosis than among patients with a normal BCNC, while these studies performed group comparisons between patients with BCNC stenosis (BCNC width <1.5 or 1.4 mm) and other groups (such as patients with a BCNC width >1.5 mm) (Kang et al, 2016 , 2019 ; Chung et al, 2018 ). However, almost all participants in our study had BCNC.…”

Section: Discussionmentioning

confidence: 99%

Value of Preoperative Imaging Results in Predicting Cochlear Nerve Function in Children Diagnosed With Cochlear Nerve Aplasia Based on Imaging Results

et al. 2022

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This study aimed to assess the function of the cochlear nerve using electrically evoked compound action potentials (ECAPs) for children with cochlear implants who were diagnosed with cochlear nerve aplasia and to analyze the correlation between preimplantation imaging results and ECAP responses. Thirty-five children diagnosed with cochlear nerve aplasia based on magnetic resonance imaging (MRI) were included. Preimplantation MRI and high-resolution computed tomography (HRCT) images were reconstructed, and the width of the bone cochlear nerve canal (BCNC), the diameter of the vestibulocochlear nerve (VCN), and the diameter of the facial nerve (FN) were measured. ECAP input/output (I/O) functions were measured at three electrode locations along the electrode array for each participant. The relationship between ECAP responses (including ECAP threshold, ECAP maximum amplitude, and slope of ECAP I/O function) and sizes of the BCNC and VCN was analyzed using Pearson's correlation coefficients. Our analysis revealed that ECAP responses varied greatly among individual participants. Overall, ECAP thresholds gradually increased, while maximum amplitudes and ECAP I/O function slopes gradually decreased, as the electrode location moved from the basal to the apical direction in the cochlea. ECAP responses exhibited no significant correlations with BCNC width or VCN diameter. The ratio of the VCN to FN diameters was significantly correlated with the slope of the ECAP I/O function and the maximum amplitude. BCNC width could not predict the function of the cochlear nerve. Compared with the absolute size of the VCN, the size of the VCN relative to the FN may represent an indicator for predicting the functional status of the cochlear nerve in children diagnosed with cochlear nerve aplasia based on imaging results.

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Section: Discussionmentioning

confidence: 99%

Value of Preoperative Imaging Results in Predicting Cochlear Nerve Function in Children Diagnosed With Cochlear Nerve Aplasia Based on Imaging Results

et al. 2022

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“…The comprehensive evaluation of prognostic factors enables CI team to counsel the CI candidates for the post-CI outcome accurately. It was known that the physiologic factors (age at CI, duration of deafness, meningitis, genetic mutation), the anatomical factors (inner ear anomaly, BCNC, CND), functional factors (residual hearing level, preoperative use of hearing aid), device factors (coding strategy, brand of CI, the percentage of active electrode), and education/rehabilitation factors (mode of communication, socioeconomic status, post-CI rehabilitation service, family support) could be related to the CI outcome [ 22 ]. In this current study, BCNC, CND, and the duration of hearing aids use were related to post-CI outcome.…”

Section: Discussionmentioning

confidence: 99%

Does the Width of the Bony Cochlear Nerve Canal Predict the Outcomes of Cochlear Implantation?

Chung

Jang

Chang

et al. 2018

BioMed Research International

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A narrow bony cochlear nerve canal (BCNC) is associated with sensorineural hearing loss necessitating cochlear implantation (CI). This study evaluated the implications of BCNC width for post-CI outcomes. A total of 56 children who had received CIs were included. The patients were divided into three groups according to the width of the BCNC (Group 1: diameter < 1.4 mm, n = 17; Group 2: diameter 1.4–2.0 mm, n = 14; Group 3: diameter > 2.0 mm, n = 25). The post-CI speech performances were compared among the three groups according to BCNC width. The correlation between BCNC width and post-CI speech performance was evaluated. Logistic regression analysis was also performed to investigate factors that can impact post-CI speech performance. Cochlear nerve deficiency (CND) occurred more frequently in Group 1. Groups 1 and 2 had significantly worse post-CI outcomes. Patients with intact cochlear nerves had significantly better post-CI outcomes than those with CND. When the cochlear nerve was intact, patients with a narrower BCNC showed less favorable results. Therefore, patients with either a narrow BCNC or CND seemed to have poorer outcomes. A narrow BCNC is associated with higher CND rates and poor outcomes. Measurement of BCNC diameter may help predict CI outcomes.

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“…Since 1989, when USA Food and Drug Administration approved cochlear implants for children, this technology has developed so fast that today cochlear implantation (CI) is the treatment of choice for children diagnosed with sever-to-profound hearing loss in majority of developed countries (1–3). Numerous trials demonstrated advantages of CI: improved hearing, speech perception, and language development (4–7).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of quality of life after paediatric cochlear implantation

Byčkova¹,

Simonavičienė²,

Mickevičienė³

et al. 2019

AML

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Background. Cochlear implantation (CI) is the main treatment method for deaf children. CI influences not only communication, but also psychosocial outcomes in children with severe to profound hearing loss. Focusing on issues specific to CI (e.g., self-reliance, social relations, education) may provide a more accurate and relative view of functional status of paediatric cochlear implant users. The objectives of this study were to translate into Lithuanian and adapt an international questionnaire of the quality of life after cochlear implantation and to evaluate parental perspectives regarding CI and the child’s progress after a minimum of two years after surgery. Materials and methods. The parental questionnaire The Children with Cochlear Implants: Parental Perspectives CCIPP was used to evaluate the quality of life following cochlear implantation. The questionnaire includes 74 items covering two main domains: decision-making (26 items) and the outcomes of implantation (48 items). Quality of life is estimated according to the scores of eight sub-domains: communication, general functioning, well-being, self-reliance, social relations, education, effects of implantation, and supporting the child. Results. The paediatric sample consisted of 11 (39%) girls and 17 (61%) boys, whose mean age at the time of cochlear implantation was 2.41 ± 2.25 years, mean duration of the implant use 3.7 ± 1.3 years. All the grand means in the outcomes of implantation domain exceeded 3 on the 5-point scale, meaning that parents viewed the quality of life of their children as either average or better. Parents rated the sub-domains of communication (3.90 ± 0.77 points), social relations (4.05 ± 0.41), and supporting the child (3.89 ± 0.49) most positively. Conclusions. According to parents, the quality of life improves after the cochlear implantation, especially in the fields of communication, social relations and supporting the child.

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Prediction of Cochlear Implant Outcomes in Patients With Prelingual Deafness

Cited by 21 publications

References 24 publications

Value of Preoperative Imaging Results in Predicting Cochlear Nerve Function in Children Diagnosed With Cochlear Nerve Aplasia Based on Imaging Results

Value of Preoperative Imaging Results in Predicting Cochlear Nerve Function in Children Diagnosed With Cochlear Nerve Aplasia Based on Imaging Results

Does the Width of the Bony Cochlear Nerve Canal Predict the Outcomes of Cochlear Implantation?

Evaluation of quality of life after paediatric cochlear implantation

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