PURPOSE: This study aims to evaluate the effectiveness of manufacturer's prefit procedure in matching the prescribed real-ear targets. It also aims to study its correlated impact on the predicted speech perception in children with severe and profound hearing loss.
RESEARCH DESIGN: This cross-sectional experiment was carried out by measuring the output of hearing aids based on prefit versus real-ear at low-, moderate-, and high-input levels. The predicted speech perception for different hearing aid fittings was determined based on the Speech Intelligibility Index (SII).
STUDY SAMPLE: Sixteen children (28 ears) aged between 4 and 7 yr, with severe to profound sensorineural hearing loss took part in the study.
METHOD: Two different types of hearing aids (Phonak and Unitron) were programmed based on their respective manufacturers' Desired Sensation Levels (DSL) v5 Child procedure. The hearing aids were then verified using coupler-based measurements and individual real-ear-to-coupler differences. The prefit outputs were compared with the DSL v5 Child-prescribed outputs at low-, moderate-, and high-input levels. The hearing aids were then adjusted to closely match the prescribed output. The SIIs were calculated for the fittings before and after adjustment.
DATA COLLECTION AND ANALYSIS: Sixty four percent of fittings that were based on the prefit procedure achieved the optimal fit-to-targets, with less than 5-dB RMS deviations from the DSL v5 Child targets. After adjusting the hearing aids to attempt to meet the DSL v5 Child targets, 75% of the ears tested achieved the optimal fit-to-targets. On average, hearing aid outputs generated by the manufacturer's prefit procedure had good and reasonable agreement with the DSL v5 Child-prescribed outputs at low- and mid-frequencies. Nonetheless, at 4000 Hz, the hearing aid output mostly fell below the DSL v5 Child-prescribed outputs. This was still the case even after the hearing aid was adjusted to attempt to match with the targets. At low input level, some prefit outputs were found to be higher than the prescribed outputs. The deviations of prefit outputs from the prescribed outputs were dependent on the type of hearing aid and input levels. There was no significant difference between the SII calculated for fittings based on the prefit and adjusted fit.
CONCLUSIONS: Prefit procedure tends to produce outputs that were below the DSL v5 Child-prescribed outputs, with the largest mean difference at 4000 Hz. Even though the hearing aid gains were adjusted to attempt to match with the targets, the outputs were still below the targets. The limitations of hearing aids to match the DSL v5 Child targets at high-frequency region have resulted in no improvement in the children's predicted speech perception.
Methods: The research conducted a systematic review of selected articles from Scopus and PubMed databases, retrieved through three search-process keywords, namely socio-emotional, children and CI. The inclusion criteria only included journal articles published in English with empirical data from the year 2010-2019. The initial search had identified 189 potential abstracts and after removal of duplicates, only 38 eligible studies met the inclusion criteria.
Results: Among 38 studies reviewed, 19 studies showed comparable socio-emotional skills with peers in social interaction, empathy, emotion theory of mind and comprehension skills. Conversely, the other 19 studies presented underprivileged results in socio-emotional functioning mainly in identifying facial expression, regulating emotion and emotional cues in the auditory domain.
Conclusion: This review concluded that the socio-emotional development among children with CI, both at preschool-age and school-age, was not justified due to the heterogeneity in studies across measurement and small sample size. Also, the conclusion recommended extensive cross-referencing, mixed-mode research design, detailed distinguishing of socio-emotional functioning and identification of diverse groups of the population with impaired hearing as an approach to provide empirical evidence on socio-emotional functioning among children with CI in the future.
METHOD: The study utilized a semi-structured interview with open-ended questions to obtain information about parents' experiences during the diagnosis period and their challenges when going through that process. In this study, a total of 16 parents of children who were diagnosed with moderate to profound sensorineural hearing loss and received intervention within three years at the time of the study participated. Ten of the children were cochlear implant users, and six were hearing aid users.
RESULTS: Thematic analysis was used to analyse themes generated from the data according to the study objective. Four main themes and 17 subthemes were identified from this study. The four main themes were 1) Parents' emotion; 2) Parental knowledge; 3) Others; 4) Profesional services. Challenges that parents faced often include emotional behaviours such as feeling guilty and devastated during the diagnosis, lack of information-sharing from healthcare givers, lack of knowledge on childhood hearing loss among parents, support from families, seek for a second opinion, worry about others' acceptance, longer time for diagnosis to confirm, late referral to other related profesionals and no priority for the appointment.
CONCLUSION: Emotion is identified as the biggest challenge faced by parents in the process of diagnosis for their children with hearing loss. Hence, management of parental emotion needs to be emphasized by health profesionals as it influences the acceptance of parents towards their child's diagnosis.
OBJECTIVE: To assess the auditory outcome of paediatric bilateral cochlear implant in Universiti Kebangsaan Malaysia.
MATERIALS AND METHODS: This was a cross-sectional and descriptive study single centre analysis. Categories of Auditory Performance (CAP-II) scale and Speech, Spatial and Qualities (SSQ) of Hearing questionnaire were used.
RESULTS: Forty-six patients were recruited. Majority of the children (30.4%) rated 7 and 23.9% scored perfectly (9) based on the CAP-II Scale. The least performing children were rated 5 (average). Children that were implanted sequentially within 24 months showed median CAP-II scale of 7. No significant correlation seen between CAP-II and the duration interval, use and age of 1st CI (p > .05). The speech domain of SSQ-P scale showed median value of 8 indicating good speech understanding. The spatial hearing domain had median value of 7, quality of hearing domain had median of 8. Significant correlation seen in hearing in noise with the duration of use of CI (p
METHOD: A total of 336 and 616 acoustic tokens were collected from six CI and 11 NH Malay children, respectively. The groups were matched for hearing age and duration of exposure to Arabic sounds. All the 28 Arabic consonants in the form of consonant-vowel /a/ were presented randomly twice via a loudspeaker at approximately 65 dB SPL. The participants were asked to repeat verbally the stimulus heard in each presentation.
RESULTS: Within the native Malay perceptual space, the two groups responded differently to the Arabic consonants. The dispersed uncategorized assimilation in the CI group was distinct in the confusion matrix (CM), as compared to the NH children. Consonants /ħ/, /tˁ/, /sˁ/ and /ʁ/ were difficult for the CI children, while the most accurate item was /k/ (84%). The CI group transmitted significantly reduced information, especially for place feature transmission, then the NH group (p
Design: This is a cross-sectional, questionnaire-based study. The questionnaire consists of three sub-domains - interaction, emotional well-being and support for the hearing-impaired child and the overall QoL -- and two open-ended questions for participants to provide comments and suggestions to enhance their family's QoL. A total of 63 questionnaires were e-mailed or mailed to families who met the inclusion criteria.
Setting: The study was conducted under the Center for Rehabilitation & Special Needs, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur.
Participants: A total of 79 parents and 23 siblings from 44 families of children with CI participated in this study.
Main outcome measures: The mean score for each of the sub-domain and the overall QoL for both subject groups were computed. The answers for the open-ended questions were listed and organized into themes.
Results: There were significant correlations between the overall QoL score and each of the test domains for the parents' group (p
METHODS AND ANALYSIS: The scoping review process follows the five-staged Arksey and O'Malley (2005) methodology framework excluding the optional consultation stage (stage 6): the definition of the research questions (step 1); the eligibility criteria and search strategy are defined (stage 2); the study selection process based on the eligibility criteria identified will follow (stage 3); a framework developed for this review will then inform the extraction and charting of data from the included studies (step 4) and results will be aggregated and summarised with criteria relevant for health professionals and policymakers (stage 5). We will search for electronic databases (MEDLINE/PubMed, Scopus, Web of Science), grey literature sources and critical studies' reference lists to determine the appropriate inclusion criteria. Three researchers will review all abstracts and full-text studies for inclusion.
ETHICS AND DISSEMINATION: This scoping review methodology does not require ethical approval since it aims to synthesise information from available publications. A scoping review article will be submitted for publication to a scientific journal following this protocol.
STUDY DESIGN: This was a cross sectional observational study.
METHODS: Two sets of questionnaires were given to 126 parents or primary caregivers of the implantees. The first set of questionnaire contained questions to assess the children's usage of CI, their types of education placement, and their modes of communication. The second set of questionnaire was the Parent's Evaluation Of Aural/Oral Performance of Children (PEACH) to evaluate the children's auditory functionality.
RESULTS: Our study showed that among the implantees, 97.6% are still using their CI, 69.8% communicating orally, and 58.5% attending mainstream education. For implantees that use oral communication and attend mainstream education, their mean age of implantation is 38 months. This is significantly lower compared to the mean age of implantation of implantees that use non-oral communication and attend non-mainstream education. Simple logistic regression analysis shows age of implantation reliably predicts implantees (N = 126) would communicate using oral communication with odds ratio of 0.974, and also predict mainstream education (N = 118) with odds ratio of 0.967. The median score of PEACH rating scale is 87.5% in quiet, and this significantly correlates with an earlier age of implantation (r = -0.235 p = 0.048).
CONCLUSIONS: UKM Cochlear Implant Program has achieved reasonable success among the pediatric implantees, with better outcomes seen in those implanted at the age of less than 4 years old.
METHODS: Participants were matched for hearing age (Mean, M = 7 ± 1.03 years) and duration of exposure to Arabic sounds (M = 2.7 ± 1.2 years). All 28 Arabic phonemes were presented through a loudspeaker and participants pointed to the graphemes associated with the presented phonemes.
RESULTS: A total of 336 and 616 tokens were collected for six children with CI and 11 NH children for each task, i.e., phonemes repetition and phoneme-grapheme correspondence. Both groups found it easier to repeat phonemes than the phoneme-grapheme correspondence. The children with CIs showed more confusion ([ظ, ز, ذ, ض, خ, ب, ه, س, ع, & ث] >10% correct scores) in phoneme-grapheme correspondence than the NH children ([ظ:14%] and [ث: 27%]). There was a significant interaction (p = 0.001) among the three visual graphical features and hearing status (CI and NH).
CONCLUSION: Our results infer that non-native Malay children with CIs and NH use different strategies to process the Arabic graphemes' visual features for phoneme-grapheme correspondence.
MATERIALS AND METHODS: A total of 14 children with CVM/CND with unilateral cochlear implant (CI) implanted before the age of 4 years old were matched and compared with 14 children with normal inner ear structures. Their improvement in auditory performance was evaluated twice using CAP-II score and SIR scales at 6-month intervals, with the baseline evaluation done at least 6 months after implantation.
RESULTS: The average age of implantation was 31±8 and 33±7 months for the control group and the case (CVM/CND) group, respectively. Overall, there were no significant differences in outcome when comparing the entire cohort of case subjects and their matched control subjects in this study. However, the improvement in CAP-II scores and SIR scales among the case subjects in between the first and second evaluations was statistically significant (p=0.040 and p=0.034, respectively). With longer duration of CI usage, children with CVM/CND showed significant speech perception outcome evident by their SIR scales (p=0.011).
CONCLUSION: Children with radiographically malformed inner ear structures who were implanted before the age of 4 years have comparable performance to their matched counterparts, evident by their similar improvement of CAP-II scores and SIR scales over time. Hence, this group of children benefited from cochlear implantation.
Subjects and METHODS: Thirty-five healthy Malaysian children aged 4 to 12 years participated in this repeated-measures study. The CAEP waveforms were recorded from each child using a 1 kHz tone burst and the speech syllable /ba/. Latencies and amplitudes of P1, N1, and P2 peaks were analyzed accordingly.
RESULTS: Significant negative correlations were found between age and speech-evoked CAEP latency for each peak (p< 0.05). However, no significant correlations were found between age and tone-evoked CAEP amplitudes and latencies (p>0.05). The speech syllable /ba/ produced a higher mean P1 amplitude than the 1 kHz tone burst (p=0.001).
CONCLUSIONS: The CAEP latencies recorded with the speech syllable became shorter with age. While both tone-burst and speech stimuli were appropriate for recording the CAEP, significantly bigger amplitudes were found in speech-evoked CAEP. The preliminary normative CAEP data provided in the present study may be beneficial for clinical and research applications in Malaysian children.
METHODS: A total of 11 parents and 8 teachers of the 6-year old CI children participated and rated the children using the School Readiness Scale to Year One. Data from 207 6-year old NH children from five states in Malaysia were also collected using the same scale which has nine domains. Results from the NH children were categorized into the 25th and 75th percentile scores to be the reference cut-offs for below average (below the 25th percentile), average (25th to 75th percentile) and above average (above 75th percentile).
RESULTS: The school readiness skills of the CI children were lower than the NH group as rated by teachers especially in the civic and language and communication domains. Comparisons between parents' and teachers' ratings for 8 CI children indicated that teachers tended to rate the CI children's school readiness poorer than that of parents especially in the academic domain. Intra-class correlation analysis revealed poor inter-rater agreement.
CONCLUSIONS: The results suggest that our CI children, generally, need an intervention 'bridging' program to improve their school readiness skills. Parents and teachers had different views on the readiness of the CI children at school entry level.
MATERIALS AND METHODS: A total of 159 patients from the Hospital Canselor Tuanku Muhriz (HCTM) Cochlear Implant Programme were recruited in this retrospective cross-sectional study. All paediatric Cochlear Implant (CI) recipients with pre-lingual deafness were included in this retrospective study. The study was conducted from January 2019 until December 2020. The pre-lingual cochlear implant recipients' data were analysed based on demographics and interval from diagnosis to hearing aid fitting and implantation. The association between the dependent variables with early and late cochlear implantation was compared.
RESULTS: A total of 83 (52%) patients were female. Chinese race constituted most of the patients, which was 90/159 (57%). The majority were from middle-income families (M40); 89 (56%). The most common aetiology of Hearing Loss (HL) was idiopathic; 139 (87%), followed by intrauterine infections, which comprised of congenital CMV; 8 (5%) and congenital Rubella; 1 (1%) and nonspecific intrauterine infection 2 (1%). The relationship between the universal neonatal hearing screening and the interval between diagnosis to implantation was significant (p=0.033). Other variables were not significant.
CONCLUSION: UNHS was a significant factor contributing to early and late implantation. The median age of diagnosis of hearing loss was 18 months (interquartile range; 15); the age of CI was 34 months (interquartile range; 24); the interval from diagnosis to hearing aid was 2 months (interquartile range; 5), and the interval from diagnosis to CI was 16 months (interquartile range; 14).
DESIGN: This is a cross-sectional study that used a convenient sampling technique.
STUDY SAMPLE: One hundred and fifty-seven parents of typically developing children aged between 4 months and 7 years participated in the study. Forty-nine completed the Malay PEACH + in a pen-to-paper format (Aim 1). One hundred and eight parents completed PEACH + online (69 completed the Malay version and 39 the English version), and 20 of them completed the questionnaire twice (Aim 2).
RESULTS: The PEACH + in Malay showed high internal consistency and item-total correlation. The normative data revealed that scores for frequency of auditory behaviour increased rapidly with age until about 20 months and reached an asymptote of around 90% by about 40 months of age. A similar trend was observed for ease of listening scores, which asymptoted around 85%.
CONCLUSIONS: The validated Malay PEACH + Rating Scale can be used as a guide to monitor auditory functional performance and listening efforts of Malaysian children in real-world environments.