Hearing impairment detection and intervention in children from centre-based early intervention programmes

Hearing Loss Interventions for Occupational Therapy Practitioners: A Scoping Review

Hearing loss can impact an individual's mental, emotional, physical, and spiritual well-being. This review identifies existing research on client-centered interventions for Deaf and Hard of Hearing (DHH) clients which occupational therapy practitioners should understand. Databases searched included CINAHL, JSTOR, ERIC, PsychINFO, and Google Scholar. Full-text articles published in English from December 2013 to December 2023 were reviewed. After data extraction and analysis, 77 articles were synthesized, and interventions were categorized by type, occupation, relevant age group, theme, and professional performing the intervention. Understanding these interventions will help occupational therapy practitioners support DHH clients across the lifespan.

Establishment of quantitative evaluation system for cochlear implant effectiveness for hearing-impaired children

Introduction

Cochlear implant is currently the most widely proven interventions for auditory rehabilitation for children with severe sensorineural hearing impairment. However, there are obvious limitations in these current evaluation methods. This study aims to develop an evaluation system for quantitatively evaluating the effectiveness of cochlear implants for hearing-impaired children.

Methods

A correspondence questionnaire was developed based on an initial indicator system that was developed based on the literature focused on the evaluation of cochlear implant outcomes in children. Twenty-five experts in otology, clinical audiology, rehabilitation audiology, and mental health from nine provinces in China were consulted. The degree of authority and coordination of experts and the indicators and weights of the quantitative evaluation system were analyzed. Seventy-eight children aged 3-11 years after cochlear implantation were recruited from two centers in Hubei province to evaluate the reliability and validity of the quantitative evaluation system.

Results

The opinions of experts converged after the second round of correspondence, and the coordination and authority of the expert consensus were met. The recall rate of the questionnaire was 100% for both rounds. Five secondary indicators, including auditory ability, verbal ability, behavioral assessment, learning capabilities, and quality of life, and 13 tertiary indicators were reserved for the evaluation of cochlear implant effectiveness. The weight of each indicator was calculated. The Cronbach's α coefficient of the quantitative evaluation system based on the standardized items was 0.930, and the three extracted common factors could explain 78.86% of the total variance.

Conclusions

An expert consensus-based evaluation system that can quantitatively evaluate the effectiveness of cochlear implants in children has been developed with good reliability and validity.

Audiological profile of deaf and hard-of-hearing children under six years old in the "HI HOPES cohort" in South Africa (2006-2011)

BACKGROUND

This study concerns deaf children under six years in the South African HI HOPES Cohort.

OBJECTIVE

To examine their audiological profile, aetiological risk factors for infant hearing loss as well as the relationship between identification, amplification and socio-economic influences.

DESIGN

Using a cohort design, secondary data analysis of a pre-existing dataset demonstrated adequate representation of South African demographic characteristics.

STUDY SAMPLE

A total of 532 deaf and hard-of-hearing infants enrolled in the HI HOPES early intervention programme in three provinces (2006-2011).

RESULTS

The median age of identification of children with bilateral hearing loss (n = 502) was 24.0 months (IQR = 12-36 months). Infants with aetiological risk factors were identified later than those without risk factors, and the latest age of identification (28.5 months) was for those with three aetiological risk factors (n = 42). The median age of amplification was 32 months with 102 children eligible for amplification at 31.1 months still unamplified. Early identification did not imply early amplification, and the more economically advantaged a Province the smaller the gap between ages of identification and amplification.

CONCLUSIONS

In a field with little population-level evidence, the size, and representativeness of this dataset makes a significant contribution to our understanding of infant hearing loss in South Africa.

Outcomes of newborn hearing screening at an academic secondary level hospital in Johannesburg, South Africa

BACKGROUND

The Health Professions Council of South Africa (HPCSA) issued early hearing detection and intervention guidelines, which has universal newborn hearing screening (UNHS) as one of the important goals. Despite established evidence of the importance of UNHS globally, there has been no mandated formalised and standardised implementation as yet in South Africa.

OBJECTIVES

The aim of this study was to describe the outcomes of newborn hearing screening (NHS) in an academic secondary level hospital in Johannesburg, South Africa.

METHODS

This was a prospective non-experimental feasibility study over a 3-month period, involving conducting hearing screening of 121 neonates. Audiologists conducted a risk factor assessment, otoscopic examinations and distortion product otoacoustic emissions (DPOAEs) screening on each neonate, with follow-up appointments for re-screening and diagnostic audiological assessments for all neonates with refer findings. Data were analysed using STATA intercooled version 11©, through both descriptive and inferential statistics (Fisher's exact test), with significance established where p-values less than 0.05 were considered statistically significant.

RESULTS

Of the 121 neonates screened, the majority (75%) were screened in the first 24 h of life. A high refer rate (47%) of the total sample was found on DPOAE screening. No maternal or neonatal risk factors were found to be significantly associated with refer findings.

CONCLUSION

Findings contribute towards the existing evidence base that raises implications for successful implementation of NHS programmes in public healthcare in South Africa. Screening protocols need to consider the timing of screening, the measures and procedures adopted in the screening protocols, as well as the follow-up strategies.

Maternal knowledge and views regarding early hearing detection and intervention in children aged 0-5 years at a semi-urban primary care clinic in South Africa

BACKGROUND

South Africans have an increasing burden of hearing loss, especially in low-income rural areas. Limited information is available regarding caregivers' knowledge and views regarding infant hearing loss, which is essential for the successful implementation of early hearing detection and intervention (EHDI) programmes.

OBJECTIVES

The main aim of the study was to describe the knowledge and views of mothers with children aged between 0 and 5 years old regarding hearing screening, risk factors, symptoms of hearing loss, and intervention options for hearing loss.

METHOD

A survey was employed at a primary care clinic to gain insight into the maternal views on hearing loss and early intervention services for children aged 0-5 years old.

RESULTS

The majority (83.2%) of the mothers believed that hearing can be tested at birth, 90.7% believed in the biomedical model of intervention which is based on cure, prevention, and pathology as opposed to traditional or alternative medicinal beliefs, and 95.3% indicated that they would seek medical attention if they noticed symptoms of hearing loss. Consequences of hearing loss, such as academic, communication and social problems, were indicated by 65.4% of mothers.

CONCLUSION

The findings demonstrated that although cultural beliefs regarding superstitious causes of hearing loss and use of traditional medicine exist, satisfactory maternal knowledge regarding detection and intervention for hearing loss is present. Maternal views are favourable and a general willingness to participate in EHDI programmes was present. This study advocates for the implementation of EHDI programmes at all primary healthcare clinics across South Africa.

Communication and school readiness abilities of children with hearing impairment in South Africa: A retrospective review of early intervention preschool records

Background

The national prevalence of hearing impairment in South Africa is estimated to be four to six in every 1000 live births in the public health care sector. An undetected hearing impairment in childhood can lead to delayed speech and language development as well as put the child at risk of not achieving the necessary school readiness abilities that will enable them to achieve academic success. However, through early hearing detection and intervention services, children with hearing impairment can develop communication and school readiness abilities on par with children with normal hearing.

Objective

The aim of the study was to describe communication and school readiness abilities of children who were identified with hearing impairment and enrolled in early intervention (EI) preschools in Gauteng.

Methods

Within a descriptive research study design, a retrospective record review was conducted on files of eight children, ranging in age from 9 years and 7 months to 12 years and 7 months, identified with a hearing impairment and enrolled in EI preschools in Gauteng, South Africa. Descriptive statistics were used to analyse the data, using frequency distribution and measures of central tendency.

Results

Current findings revealed that children with hearing impairment who were enrolled in EI preschools in Gauteng were identified late. This consequently led to delayed ages at initiation of EI services when compared to international benchmarks and the Health Professions Council of South Africa’s (HPCSA) guidelines of 2018. Consequently, participants presented with below average communication and school readiness abilities, which are characteristic of hearing impairment that is identified late.

Conclusions

Transference of current contextually relevant research findings into practice by both the Department of Health and the Department of Basic Education forms part of future directions from this study. This conversion of research findings into service delivery must be conducted in a systematic manner at all levels in these two sectors to facilitate achievement of Early Hearing Detection and Intervention (EHDI), resulting in better communication and school readiness outcomes.