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Silva AL, Stumpf IMDS, Lacroix LP, Alves DMF, Silveira ALD, Costa SSD, Rosito LPS. Language development in children from a public cochlear implant program. Braz J Otorhinolaryngol 2024; 90:101458. [PMID: 39032465 PMCID: PMC11315129 DOI: 10.1016/j.bjorl.2024.101458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 05/16/2024] [Accepted: 06/03/2024] [Indexed: 07/23/2024] Open
Abstract
OBJECTIVE To evaluate the rate of loss to follow-up in a cochlear implant program from the public health system in Southern Brazil as well as the characteristics of hearing loss, sociodemographic, sociocultural and the development of oral language in children with prelingual deafness. METHODS Retrospective cohort study with children who underwent CI surgery between 2010 and 2020. Data was collected through of interviews and review of medical records. The language development assessment was performed using the MUSS, MAIS and IT-MAIS scales. For the classification of language development, we used as parameters the values (mean ± SD) found in a previous national study. From those values, the Z-score for each patient at each hearing age (time of experience with the cochlear implant) was calculated. RESULTS Of the 225 children implanted between 2010-2020, 129 were included in this study. The rate of loss to follow-up in the program was 42.6%. The mean age at first surgery was 40.5 (±16.9) months, with 77.5% of patients having received a unilateral implant. Language results below the expected for hearing age ( CONCLUSIONS Most patients had an elevated mean age at cochlear implantation and there was a high rate of loss to follow-up and low attendance to speech and programming sessions. An overall poor language performance was found for this pediatric cochlear implant program from the public health system in Southern Brazil. LEVEL OF EVIDENCE Level 3 (Non-randomized cohort study).
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Affiliation(s)
- Alice Lang Silva
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Porto Alegre, RS, Brazil.
| | | | - Laura Prolla Lacroix
- Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Medicina, Porto Alegre, RS, Brazil
| | | | | | - Sady Selaimen da Costa
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Porto Alegre, RS, Brazil; Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Otorrinolaringologia, Porto Alegre, RS, Brazil
| | - Letícia Petersen Schmidt Rosito
- Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Otorrinolaringologia, Porto Alegre, RS, Brazil; Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Medicina, Porto Alegre, RS, Brazil
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Kim EY, Seol HY. Comparison of Speech Perception Performance According to Prosody Change Between People With Normal Hearing and Cochlear Implant Users. J Audiol Otol 2024; 28:119-125. [PMID: 38052522 PMCID: PMC11065548 DOI: 10.7874/jao.2023.00234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/13/2023] [Accepted: 07/27/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Cochlear implants (CIs) are well known to improve audibility and speech recognition in individuals with hearing loss, but some individuals still struggle with many aspects in communication, such as prosody. This study explores how prosodic elements are perceived by those with normal hearing (NH) and CIs. SUBJECTS AND METHODS Thirteen individuals with NH and thirteen CI users participated in this study and completed speech perception, speech prosody perception, speech prosody production, pitch difference discrimination, and melodic contour perception testing. RESULTS NH listeners performed significantly better than CI users on speech perception, speech prosody perception (except for words with neutral meaning and a negative prosody change and when words were repeated twice), pitch difference discrimination, and melodic contour perception testing. No statistical significance was observed for speech prosody production for both groups. CONCLUSIONS Compared to NH listeners, CI users had limited ability to recognize prosodic elements. The study findings highlight the necessity of an assessment tool and signal processing algorithm for CIs, specifically targeting prosodic elements in clinical settings.
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Affiliation(s)
- Eun Yeon Kim
- Department of Speech Language Pathology, Graduate School of Interdisciplinary Therapy, Myongji University, Seoul, Korea
| | - Hye Yoon Seol
- Department of Communication Disorders, Ewha Womans University, Seoul, Korea
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Virzob CRB, Poenaru M, Morar R, Horhat ID, Balica NC, Prathipati R, Moleriu RD, Toma AO, Juganaru I, Bloanca V, Chicin GN, Fericean RM, Domuta EM, Iurciuc M, Iurciuc S. Efficacy of Bilateral Cochlear Implantation in Pediatric and Adult Patients with Profound Sensorineural Hearing Loss: A Retrospective Analysis in a Developing European Country. J Clin Med 2023; 12:jcm12082948. [PMID: 37109284 PMCID: PMC10144087 DOI: 10.3390/jcm12082948] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
This retrospective study aimed to evaluate the outcomes of bilateral cochlear implantation in patients with severe-to-profound sensorineural hearing loss at the Timisoara Municipal Emergency Clinical Hospital ENT Clinic. The study involved 77 participants, divided into four groups based on their hearing loss characteristics and implantation history. Assessments were conducted pre- and post-implantation, focusing on speech perception, speech production, and reading achievement. Standard surgical procedures were performed, and participants were provided with a comprehensive rehabilitation program involving auditory training and communication therapy. The variables considered for analysis included demographic factors, implantation period, and quality of life assessment, with no statistically significant differences pre-implantation between the four study groups. Results revealed significant improvements in speech perception, speech production, and reading achievement after cochlear implantation. In adult patients, speech perception scores increased from 21.3% to 73.4% for WIPI and from 22.7% to 68.4% for HINT after 12 months of rehabilitation. Speech production scores improved from 33.5% to 76.8% and reading achievement scores increased from 76.2 to 106.3. Moreover, there was a significant improvement in patients' quality of life following cochlear implantation, with mean scores increasing from 2.0 to 4.2. Although it is known that bilateral cochlear implantation significantly improves speech perception, speech production, reading achievement, and quality of life in patients with severe-to-profound sensorineural hearing loss, this is the first study of its kind from Romania. Further research is warranted to optimize patient selection and rehabilitation strategies to maximize outcomes and determine better policies towards funding and access of cochlear implants for a wider range of patients in need.
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Affiliation(s)
- Claudia Raluca Balasa Virzob
- Department of Ear-Nose-Throat, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Marioara Poenaru
- Department of Ear-Nose-Throat, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Raluca Morar
- Department of Ear-Nose-Throat, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Ioana Delia Horhat
- Department of Ear-Nose-Throat, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Nicolae Constantin Balica
- Department of Ear-Nose-Throat, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Reshmanth Prathipati
- Santiram Medical College and General Hospital, Faculty of Genenral Medicine, Nandyala 518001, Andhra Pradesh, India
| | - Radu Dumitru Moleriu
- Mathematics Department, Faculty of Mathematics and Computer Science, West University Timisoara, 4th Vasile Parvan, 300223 Timisoara, Romania
| | - Ana-Olivia Toma
- Discipline of Dermatology, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Iulius Juganaru
- Department of Pediatrics, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Vlad Bloanca
- Department of Plastic Surgery, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Gratiana Nicoleta Chicin
- Faculty of General Medicine, "Vasile Goldis" Western University of Arad, Bulevardul Revolutiei 94, 310025 Arad, Romania
- National Institute of Public Health, Strada Doctor Leonte Anastasievici 1-3, 050463 Bucuresti, Romania
| | - Roxana Manuela Fericean
- Doctoral School, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Eugenia Maria Domuta
- Surgery Department, Faculty of Medicine and Pharmacy, University of Oradea, Piata 1 Decembrie 10, 410073 Oradea, Romania
| | - Mircea Iurciuc
- Department of Cardiology, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
- Research Center of the Institute of Cardiovascular Diseases Timisoara, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Stela Iurciuc
- Department of Cardiology, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
- Research Center of the Institute of Cardiovascular Diseases Timisoara, Faculty of General Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
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杜 昊, 姜 耀, 杨 烨, 高 珺, 陆 玲, 张 小, 陈 杰, 高 下. [Effect of cochlear implantation on speech recognition under different listening modes in children]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2023; 37:201-205. [PMID: 36843519 PMCID: PMC10320668 DOI: 10.13201/j.issn.2096-7993.2023.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Indexed: 02/28/2023]
Abstract
Objective:To investigate speech recognition among children with a unilateral cochlear implant(CI), bilateral CI, and bimodal hearing and identify the benefits of binaural hearing. Methods:A total of 67 children with severe sensorineural hearing loss who received bilateral CI, bimodal hearing, and unilateral CI from 2012 to 2021 were recruited, including 23 cases with unilateral CI, 25 cases of bimodal hearing, and 19 cases of bilateral CI. The aided hearing threshold at 250-4000 Hz and speech recognition performance of two-syllable words and short sentences in quiet and noisy environments were tested, respectively. Results:There was no significant difference in the hearing threshold results of the bilateral CI group, the bimodal hearing group, and the unilateral CI group by ANOVA(P>0.05). According to the paired t-test within the group, the speech recognition of disyllabic words and short sentences in quiet and noisy environments were significantly different among the three groups(P<0.05). There was no significant difference in the speech recognition rates of disyllabic words and short sentences among the three groups in a quiet environment(P>0.05), but there was a statistically significant difference in a noisy environment(P<0.05). Additional multiple linear regression analysis showed no significant difference in the recognition rates of disyllabic words and short sentences between the bimodal group and the bilateral CI group in quiet and noisy environments(β=-0.567, P>0.05; β=-0.643, P>0.05). There was a statistically significant difference in speech recognition of disyllabic words and short sentences between the bimodal group and the unilateral CI group in the noise environment(β=-0.124, P<0.05), but the difference was not statistically significant in a quiet environment(β=-0.671, P>0.05); there was a statistically significant difference in the recognition rate of disyllabic words and short sentences between the bilateral CI group and the unilateral CI group in the noise environment(β=-0.226, P<0.05), but the difference was not statistically significant in a quiet environment(β=-0.341, P>0.05). Conclusion:Clinicians and guardians are encouraged to provide the most comprehensive audiological evaluation for children with hearing loss. Bilateral CI and bimodal hearing have demonstrated enormous advantages over unilateral CI regarding speech recognition in noise. Bimodal hearing deems a strong recommendation if the contralateral ear has sufficient speech recognition capability. Bilateral CI should be warranted if hearing aids deemed to be ineffective.
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Affiliation(s)
- 昊亮 杜
- 南京大学医学院附属鼓楼医院耳鼻咽喉头颈外科 江苏省医学重点学科 南京鼓楼医院耳鼻咽喉研究所(南京,210008)Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline[Laboratory], Research Institute of Otolaryngology, Nanjing, 210008, China
| | - 耀峰 姜
- 江苏省儿童康复研究中心技术指导部Department of Technical Counseling, Jiangsu Children's Rehabilitation Research Center
| | - 烨 杨
- 南京大学医学院附属鼓楼医院耳鼻咽喉头颈外科 江苏省医学重点学科 南京鼓楼医院耳鼻咽喉研究所(南京,210008)Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline[Laboratory], Research Institute of Otolaryngology, Nanjing, 210008, China
| | - 珺岩 高
- 江苏省儿童康复研究中心技术指导部Department of Technical Counseling, Jiangsu Children's Rehabilitation Research Center
| | - 玲 陆
- 南京大学医学院附属鼓楼医院耳鼻咽喉头颈外科 江苏省医学重点学科 南京鼓楼医院耳鼻咽喉研究所(南京,210008)Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline[Laboratory], Research Institute of Otolaryngology, Nanjing, 210008, China
| | - 小莉 张
- 南京大学医学院附属鼓楼医院耳鼻咽喉头颈外科 江苏省医学重点学科 南京鼓楼医院耳鼻咽喉研究所(南京,210008)Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline[Laboratory], Research Institute of Otolaryngology, Nanjing, 210008, China
| | - 杰 陈
- 南京大学医学院附属鼓楼医院耳鼻咽喉头颈外科 江苏省医学重点学科 南京鼓楼医院耳鼻咽喉研究所(南京,210008)Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline[Laboratory], Research Institute of Otolaryngology, Nanjing, 210008, China
| | - 下 高
- 南京大学医学院附属鼓楼医院耳鼻咽喉头颈外科 江苏省医学重点学科 南京鼓楼医院耳鼻咽喉研究所(南京,210008)Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline[Laboratory], Research Institute of Otolaryngology, Nanjing, 210008, China
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Fei P, Shehata-Dieler W, Huestegge L, Hagen R, Kühn H. Longitudinal Development of Verbal and Nonverbal Intelligence After Cochlear Implantation According to Wechsler Tests in German-speaking Children: A Preliminary Study. Ear Hear 2023; 44:264-275. [PMID: 36163636 DOI: 10.1097/aud.0000000000001278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
OBJECTIVES Intelligence as a construct of cognitive abilities is the basis of knowledge and skill acquisition and the main predictor of academic achievement. As a broad construct, it is usually divided into subdomains, such as nonverbal and verbal intelligence. Verbal intelligence is one domain of intelligence but is not synonymous with specific linguistic abilities like grammar proficiency. We aim to address the general expectation that early cochlear implantation enables children who are hard of hearing to develop comprehensively, including with respect to verbal intelligence. The primary purpose of this study is to trace the longitudinal development of verbal and nonverbal intelligence in children with cochlear implants (CIs). DESIGN Sixteen children with congenital hearing loss who received unilateral or bilateral implants and completed at least two intelligence assessments around the age of school entrance were included in the study. The first assessment was performed around 3 years after CI fitting (chronological age range: 3.93 to 7.03 years). The second assessment was performed approximately 2 years after the first assessment. To analyze verbal and nonverbal IQ in conjunction and across children at different ages, we used corresponding standardized and normalized tests from the same test family (Wechsler Preschool and Primary Scale of Intelligence and/or Wechsler Intelligence Scale for Children). RESULTS Regarding longitudinal development, both verbal and nonverbal IQ increased, but verbal IQ increased more substantially over time. At the time of the second measurement, verbal and nonverbal IQ were on a comparable level. Nevertheless, we also observed strong inter-individual differences. The duration between both assessments was significantly associated with verbal IQ at the second measurement time point and thus with verbal IQ gain over time. Education mode (regular vs. special kindergarten/school) was significantly correlated with nonverbal IQ at the second assessment time point. CONCLUSIONS The results, despite the small sample size, clearly suggest that children with CIs can achieve intellectual abilities comparable to those of their normal-hearing peers by around the third year after initial CI fitting, and they continue to improve over the following 2 years. We recommend further research focusing on verbal IQ assessed around the age of school entrance to be used as a predictor for further development and for the establishment of an individual educational program.
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Affiliation(s)
- Peipei Fei
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University of Wuerzburg, Wuerzburg, Germany
| | - Wafaa Shehata-Dieler
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University of Wuerzburg, Wuerzburg, Germany
| | - Lynn Huestegge
- Department of Psychology, University of Wuerzburg, Wuerzburg, Germany
| | - Rudolf Hagen
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University of Wuerzburg, Wuerzburg, Germany
| | - Heike Kühn
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University of Wuerzburg, Wuerzburg, Germany
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Dutra MRP, Cavalcanti HG, Ferreira MÂF. Neonatal hearing screening programs: quality indicators and access to health services. REVISTA BRASILEIRA DE SAÚDE MATERNO INFANTIL 2022. [DOI: 10.1590/1806-9304202200030009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract Objectives: to verify the quality indicators of neonatal hearing screening programs, identify the most prevalent risk factors for hearing loss and analyze access to the Hearing Health Care Network. Methods: cross-sectional study using secondary data. The population are children born in public maternity hospitals from 2015 to 2019. Data collection was carried out in the database of programs and hearing health service. The absolute and relative frequencies of all variables collected and the median, the interquartile range and the Mann-Whitney test were calculated to analyze the access. Results: universality increased during the study period, but was not reached (71.9%; CI95%=70.4-73.3) and the referral rate for auditory diagnosis was within the recommended range (0.9%; CI95%=0.8-0.9). The most prevalent risk factors were congenital infections and heredity. There was an evasion of children to the hearing health service of 85.1% and the type of referral interfered with the age of the child at access. Eight children with hearing loss were diagnosed, in which seven had access to therapeutic interventions. Conclusions: hearing screening was not universal. Access to the Hearing Health Care Network presents high evasion and interventions were offered to children with hearing loss.
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Seol HY, Moon IJ. Hearables as a gateway to hearing health care: A review. Clin Exp Otorhinolaryngol 2022; 15:127-134. [PMID: 35249320 PMCID: PMC9149229 DOI: 10.21053/ceo.2021.01662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/19/2021] [Indexed: 11/26/2022] Open
Abstract
The market for hearing technology is evolving—with the emergence of hearables, it now extends beyond hearing aids and includes any ear-level devices with wireless connectivity (i.e., wireless earbuds). However, will this evolving marketplace bring forth opportunities or challenges to individuals’ hearing health care and the profession of audiology and otolaryngology? The debate has been ongoing. This study explores the wide spectrum of hearables available in the market and discusses the necessity of high-quality clinical evidence prior to the implementation of over-the-counter devices into clinical practice.
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Abstract
INTRODUCTION Cochlear implants (CIs) are biomedical devices that restore sound perception for people with severe-to-profound sensorineural hearing loss. Most postlingually deafened CI users are able to achieve excellent speech recognition in quiet environments. However, current CI sound processors remain limited in their ability to deliver fine spectrotemporal information, making it difficult for CI users to perceive complex sounds. Limited access to complex acoustic cues such as music, environmental sounds, lexical tones, and voice emotion may have significant ramifications on quality of life, social development, and community interactions. AREAS COVERED The purpose of this review article is to summarize the literature on CIs and music perception, with an emphasis on music training in pediatric CI recipients. The findings have implications on our understanding of noninvasive, accessible methods for improving auditory processing and may help advance our ability to improve sound quality and performance for implantees. EXPERT OPINION Music training, particularly in the pediatric population, may be able to continue to enhance auditory processing even after performance plateaus. The effects of these training programs appear generalizable to non-trained musical tasks, speech prosody and, emotion perception. Future studies should employ rigorous control groups involving a non-musical acoustic intervention, standardized auditory stimuli, and the provision of feedback.
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Affiliation(s)
- Nicole T Jiam
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco School of Medicine , San Francisco, CA, USA
| | - Charles Limb
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco School of Medicine , San Francisco, CA, USA
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Zhang Z, Wei C, Zhang Y, Zeng Z, Cao K, Liu Y. Sequential Bilateral Cochlear Implantation With Prolonged Time Intervals. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2020; 63:3195-3207. [PMID: 32857631 DOI: 10.1044/2020_jslhr-20-00140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Purpose The aim of the study was to assess whether sequential cochlear implantation (CI) with a prolonged interimplant interval (M = 15.2 years) between the first and second CIs benefited speech recognition and health-related quality of life. Method This prospective study included 14 prelingually deafened participants who received their second CI after a prolonged interimplant interval (M = 15.2 years). Additionally, speech recognition ability over a 12-month period of bilateral implant use was investigated. The results of the speech recognition test in both quiet and noisy conditions were statistically analyzed for each CI alone and both CIs together. Nijmegen Cochlear Implant Questionnaire scores were also collected at activation and at 12 months after activation. Results Improvements in speech recognition ability were observed following the use of the first implant alone and with the use of both implants together; however, progress was much slower with the use of the second implant alone, following its introduction. Furthermore, a significant difference in the trajectory of speech recognition ability was observed between the first and the second implanted ear. According to Nijmegen Cochlear Implant Questionnaire scores, all participants benefitted from bilateral CI after 12 months. Conclusions Prolonged interimplant intervals resulted in asymmetrical speech recognition abilities. A significant improvement in the speech recognition scores was observed with the first implanted ear, and much slower progress was observed with the second implanted ear. However, the "poorer" second implanted ear could provide a considerable beneficial effect on the improved speech recognition and health-related quality of life with the bilateral CI. Supplemental Material https://doi.org/10.23641/asha.12861152.
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Affiliation(s)
- Zhikai Zhang
- Department of Otolaryngology, Head and Neck Surgery, Peking University First Hospital, Beijing, China
| | - Chaogang Wei
- Department of Otolaryngology, Head and Neck Surgery, Peking University First Hospital, Beijing, China
| | - Yanmei Zhang
- Department of Otolaryngology, Head and Neck Surgery, Peking University First Hospital, Beijing, China
| | - Zhengang Zeng
- Department of Otolaryngology, Head and Neck Surgery, Peking University First Hospital, Beijing, China
| | - Keli Cao
- Department of Otorhinolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences Peking Union Medical College, Beijing, China
| | - Yuhe Liu
- Department of Otolaryngology, Head and Neck Surgery, Peking University First Hospital, Beijing, China
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