Archives of oto-rhino-laryngology

, Volume 231, Issue 2–3, pp 541–545 | Cite as

Erprobung einer Körperschallsonde zur Evozierung von Hirnstammpotentialen im Tierexperiment

  • Th. Janssen
  • J. Thoma
  • H. -J. Steinhoff
II. Teil: Sitzungsbericht Electric Response Audiometry
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Evoking brainstem potentials by a mechanical vibration system in the guinea pig

Summary

A new procedure of evoking brainstem potentials shall be introduced. Contrary to evoking brainstem potentials by acoustic stimulation via earphone or loudspeaker we touch the middle ear apparatus at various locations using a special mechanical vibrating system thus evoking movements within the sound-conducting structures. As a reaction to this kind of stimulation far-field brainstem potentials can be recorded; the intraoperative control of sound transmission to the inner ear is ascertained by these potentials' latency and amplitude. In order to apply the above procedure in tympanoplasty we have made a number of recordings after having simulated various kinds of middle ear pathology in the guinea pig.

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Literatur

  1. Bally v G (ed) (1979) Otological investigation in living man using holographic interferometry. Optical sciences: holography in medicine and biology. Springer, Berlin Heidelberg New York, pp 198–205Google Scholar
  2. Jansen C, Janssen Th (1980) Brainstem audiometry in tympanoplasty. J Laryngol Otol 94: 391–398Google Scholar
  3. Thullen A (1955) Die Schallsonde. Thieme, StuttgartGoogle Scholar
  4. Wilska A (1935) Eine Methode zur Bestimmung der Hörschwellenamplituden des Trommelfells bei verschiedenen Frequenzen. Scand Arch Physiol 72Google Scholar

Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • Th. Janssen
    • 1
  • J. Thoma
    • 1
  • H. -J. Steinhoff
    • 1
  1. 1.München, Berlin

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