The effect of bilateral sympathectomy on noise induced temporary threshold shift

Minka Hildesheimer*, Ruth Sharon, Chava Muchnik, Emma Sahartov, Moshe Rubinstein

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The cochlea is innervated by sympathetic nerves originating or passing the superior cervical ganglion. The termination of one type (the vascular independent) is in the habenular region close to the auditory nerve fibers, and the other, the perivascular type, is associated with blood vessels, particularly in the spiral vessel of the tympanic lip. Suggested functions have so far received partial evidence in the literature. Borg (1982) suggested the protective value of sympathectomy of the ear in noise. Our experiments further elaborate this protective value, as it was seen that bilateral cervical sympathectomy diminished the temporary threshold shift in awake, sound exposed GP.

Original languageEnglish
Pages (from-to)49-53
Number of pages5
JournalHearing Research
Volume51
Issue number1
DOIs
StatePublished - Jan 1991

Keywords

  • Noise
  • Sympathetic innervation
  • Temporary threshold shift

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