Talk:Hearing test
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Cite this page: Hill, M.A. (2026, October 5) Embryology Hearing test. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Talk:Hearing_test |
2011
Overview of newborn hearing screening activities in Latin America
Rev Panam Salud Publica. 2011 Mar;29(3):145-52.
Gerner de Garcia B, Gaffney C, Chacon S, Gaffney M. Source Educational Foundations and Research, Gallaudet University, Washington, DC, USA. barbara.gerner.de.garcia@gallaudet.edu Abstract OBJECTIVE: Ascertain the status of early hearing detection and intervention services in Latin America.
METHODS: Between June and November 2007, Gallaudet University, in collaboration with the U.S. Centers for Disease Control and Prevention Early Hearing Detection and Intervention Diversity Committee, disseminated a survey to 11 Latin American countries. It included questions about newborn hearing screening (NHS) procedures, the availability of intervention services for infants with hearing loss, and challenges in identifying infants with hearing loss. In addition, a literature review was conducted to help identify the status of NHS efforts in Latin America.
RESULTS: Six countries (Chile, Costa Rica, Guatemala, Mexico, Panama, and Uruguay) and one U.S. territory (Puerto Rico) responded to the survey. Responses indicated that efforts to identify infants with hearing loss vary within and across countries in Latin America. In some countries, activities have been implemented at a national level; in others, activities have been implemented at a single hospital or region within a country. Common barriers to implementation of NHS programs include a lack of funding, screening and diagnostic equipment, public awareness, and personnel qualified to work with infants and young children.
CONCLUSIONS: In spite of several barriers, NHS programs have been implemented in at least some facilities and regions in Latin America. Additional efforts are needed to expand NHS activities in Latin America.
PMID 21484013
Incidence and Pattern of Hearing Impairment in Children with ≤ 800 Gram Birth Weight in British Columbia, Canada
Acta Paediatr. 2011 Aug 8. doi: 10.1111/j.1651-2227.2011.02437.x. [Epub ahead of print]
Synnes AR, Anson S, Baum J, Usher L. Source Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada Child and Family Research Institute, Vancouver, BC, Canada Neonatal Follow-Up Program, Children's & Women's Health Centre of British Columbia, Vancouver, BC, Canada Audiology and Speech Sciences, University of British Columbia, Vancouver, BC, Canada.
Abstract
Aim: Evaluate changes over time in the characteristics of permanent hearing impairment (HI) in extremely low birth weight (ELBW < 800 grams) children. Methods: Data from sequential visits up to 5 years of age assessing hearing and other neurodevelopmental outcomes was extracted from a cohort of ELBW subjects born 1983-2006 at a single Canadian site. Trends in HI incidence, severity, and association with other impairments were analyzed in three 8 year epochs. Results: Fifty of 586 ELBW children had a HI. HI rates increased from 5% in epoch 1 to 7% in epoch 2 to 13% in epoch 3 (p= 0.01). Mild HI decreased from 78% in epoch 1 to 35% in epoch 3 (p =0.03). Median age at diagnosis decreased from 13 to 8 months. Comorbidities were more common in HI children than non HI children: cerebral palsy (40% vs 14%, p <0.0001)), cognitive (38% vs 12%, p <0.0001) and visual impairments (16% vs 6%, p=0.009). Conclusion: The incidence and severity of hearing impairment in a cohort of extremely low birth weight children increased significantly from 5% to 13% (p= 0.01) over a 24 year period. Comorbidities were common. Potentially modifiable causes are explored.
Acta Paediatrica © 2011 Foundation Acta Paediatrica.
PMID:= 21824192
The use of transient evoked otoacoustic emissions as a hearing screen following grommet insertion
J Laryngol Otol. 2011 Jul;125(7):692-5. Epub 2011 Apr 27.
Dale OT, McCann LJ, Thio D, Wells SC, Drysdale AJ. Source ENT Department, Musgrove Park Hospital, Taunton, UK. otdale@doctors.net.uk
Abstract OBJECTIVE: This study aimed to evaluate the sensitivity of transient evoked otoacoustic emission testing as a screening tool for hearing loss in children, after grommet insertion.
METHOD: A prospective study was conducted of 48 children (91 ears) aged three to 16 years who had undergone grommet insertion for glue ear. At post-operative review, pure tone audiometry was performed followed by transient evoked otoacoustic emission testing. Outcomes for both tests, in each ear, were compared.
RESULTS: The pure tone audiometry threshold was ≤ 20 dB in 85 ears (93.4 per cent), 25 dB in two ears (2.2 per cent) and ≥ 30 dB in four ears (4.4 per cent). Transient evoked otoacoustic emissions were detected in 69 ears (75.8 per cent). The sensitivity of transient evoked otoacoustic emission testing for detecting hearing loss was 100 per cent for ≥ 30 dB loss but only 66.7 per cent for ≥ 25 dB loss.
CONCLUSION: Transient evoked otoacoustic emission testing offers a sensitive means of detecting hearing loss of ≥ 30 dB following grommet insertion in children. However, the use of such testing as a screening tool may miss some cases of mild hearing loss.
PMID 21524331
