The records for all children from a five-year birth cohort in the geographically defined area of Lothian who were referred by their health visitor to a centralized second tier audiology service after they failed their 7-9 month infant distraction hearing screen were reviewed. The sensitivities, specificities, positive predictive values and yield of this screen for the detection of significant sensorineural hearing loss > or =40 dBA requiring aiding and for a conductive loss persisting beyond one month over 30 dBA were determined. In addition, the records were studied for the same five-year birth cohort for children presenting to the centralized multidisciplinary third tier clinic with a significant sensorineural hearing loss requiring aiding, and the reasons for late diagnosis were determined. If high risk neonatal screening had been available for this population then potentially 67.5% (27 out of 40) of cases could have been identified by an appropriate age. Elimination of health visitor distraction screen false negatives for cases with loses over 60 dBA would potentially increase the case identification by the appropriate age to 45% (1 8 out of 40). Thus, there is greater scope for improving our present results with the introduction of high risk neonatal screening than by improvements in the health visitor screen.
In this paper, we describe the development of a new technique for the assessment of hearing thresholds in the range 8 -20 kllz. We describe a model that circumvents some major difficulties encountered by present audiometr-ic methods at high frequencies. and we present measurements that validate that model. A technique that can provide accurate and reliable measurements is described and evaluated.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.