Indication criteria for cochlear implants and hearing aids: impact of audiological and non-audiological findings

  • Sabine Haumann | haumann.sabine@mh-hannover.de Medical University of Hannover, Department of Otorhinolaryngology, Hannover, Germany.
  • Volker Hohmann HoerTech Center of Competence, Oldenburg; Carl von Ossietzky University, Department of Medical Physics, Oldenburg, Germany.
  • Markus Meis HoerTech Center of Competence, Oldenburg, Germany.
  • Tobias Herzke HoerTech Center of Competence, Oldenburg, Germany.
  • Thomas Lenarz Medical University of Hannover, Department of Otorhinolaryngology, Hannover, Germany.
  • Andreas Büchner Medical University of Hannover, Department of Otorhinolaryngology, Hannover, Germany.

Abstract

Owing to technological progress and a growing body of clinical experience, indication criteria for cochlear implants (CI) are being extended to less severe hearing impairments. It is, therefore, worth reconsidering these indication criteria by introducing novel testing procedures. The diagnostic evidence collected will be evaluated. The investigation includes postlingually deafened adults seeking a CI. Prior to surgery, speech perception tests [Freiburg Speech Test and Oldenburg sentence (OLSA) test] were performed unaided and aided using the Oldenburg Master Hearing Aid (MHA) system. Linguistic skills were assessed with the visual Text Reception Threshold (TRT) test, and general state of health, socio-economic status (SES) and subjective hearing were evaluated through questionnaires. After surgery, the speech tests were repeated aided with a CI. To date, 97 complete data sets are available for evaluation. Statistical analyses showed significant correlations between postsurgical speech reception threshold (SRT) measured with the adaptive OLSA test and pre-surgical data such as the TRT test (r=-0.29), SES (r=-0.22) and (if available) aided SRT (r=0.53). The results suggest that new measures and setups such as the TRT test, SES and speech perception with the MHA provide valuable extra information regarding indication for CI.

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Author Biographies

Volker Hohmann, HoerTech Center of Competence, Oldenburg; Carl von Ossietzky University, Department of Medical Physics, Oldenburg
PD Dr.
Markus Meis, HoerTech Center of Competence, Oldenburg
Dr.
Thomas Lenarz, Medical University of Hannover, Department of Otorhinolaryngology, Hannover
Prof. Prof.h.c. Dr.
Andreas Büchner, Medical University of Hannover, Department of Otorhinolaryngology, Hannover
PD Dr.
Published
2012-08-14
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Original Articles
Keywords:
cochlear implant, medical audiology, psychoacoustics/hearing science, speech perception.
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How to Cite
Haumann, S., Hohmann, V., Meis, M., Herzke, T., Lenarz, T., & Büchner, A. (2012). Indication criteria for cochlear implants and hearing aids: impact of audiological and non-audiological findings. Audiology Research, 2(1), e12. https://doi.org/10.4081/audiores.2012.e12