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Experience with the cochlear miniature speech processor in adults and children together with a comparison of unipolar and bipolar modes.

Authors
  • Lehnhardt, E
  • Gnadeberg, D
  • Battmer, R D
  • von Wallenberg, E
Type
Published Article
Journal
ORL; journal for oto-rhino-laryngology and its related specialties
Publication Date
Jan 01, 1992
Volume
54
Issue
6
Pages
308–313
Identifiers
PMID: 1475100
Source
Medline
License
Unknown

Abstract

Following the experience with nearly 150 patients with the Nucleus cochlear implant, a more sophisticated and lighter speech processor was tested successfully in terms of better speech understanding. In order to prepare further miniaturization, the standard bipolar stimulation mode was compared with an unipolar mode. It was found that unipolar stimulation needs less energy, without decreasing speech understanding. Preconditions for supplying very young children with a cochlear implant were the use of electrically elicited stapedius reflex thresholds, obtained intraoperatively, for the fitting of the speech processor and the setup of a special rehabilitation center, where children together with their mothers could be trained in hearing and understanding by special teachers and engineers for 12 weeks, distributed over the 1st postoperative year.

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