gms | German Medical Science

81st Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

12.05. - 16.05.2010, Wiesbaden

Suitability of Auditory Speech Sound Evaluation (AžE-Test) in cochlear implant patients

Meeting Abstract

  • corresponding author presenting/speaker Diana Arweiler-Harbeck - HNO-Universitńtsklinik Essen, Essen, Germany
  • Sandra Janeschik - HNO-Universitńtsklinik Essen, Essen, Germany
  • Melanie Teschendorf - HNO-Universitńtsklinik Essen, Essen, Germany
  • author Heike Bagus - CIC Ruhr, Essen, Germany

German Society of Oto-Rhino-Laryngology, Head and Neck Surgery. 81st Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery. Wiesbaden, 12.-16.05.2010. DŘsseldorf: German Medical Science GMS Publishing House; 2010. Doc10hno041

doi: 10.3205/10hno041, urn:nbn:de:0183-10hno0419

Published: July 6, 2010

© 2010 Arweiler-Harbeck et al.
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Outline

Text

Introduction: The AžE« is an audiological evaluation tool based on speech sounds as stimuli and was developed by The Eargroup Antwerp. It consists of three levels: detection, discrimination and identification of phonemes and is a sufficient tool to measure supraliminal auditory capacities in Flemic language for children 10 months and older and adults. Aim of the study was to test the suitability for cochlear implant patients in Germany.

Methods: 245 consecutive measurements (141 adults, 79 children, 25 controls) in a standard test protocol for phoneme detection and discrimination, Mainzer and G÷ttinger in children and Freiburger in adults pre-, 3 and 6 months and one year after implantation. Evaluation of results in detection and discrimination regarding frequency spectrum and fitting parameters; statistical methods: t-test, correlation analysis.

Results: Detection improves first followed by numbers, phoneme discrimination and monosyllables. Test results compared pre- to 3, 6 months and later postoperatively differ significantly (p<0,05). A “ceiling-effect” is obtained between 6 months and one year (reproduction in AžE« >90%). Development of detection and discrimination correlates directly with results in numbers and monosyllables (r= 0,92). Non-German speaking patients cope better with AžE«. Evaluation of phoneme discrimination enables to frequency specific fitting.

Conclusion: AžE« is a valuable diagnostic supplement in fitting and therapy of cochlear implant patients independent from cognitive level, age and language. Important information on frequency resolving power of cochlear nerve after implantation is gained. Use of AžE« enables comparability and evaluation of study results in different countries.