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Related Experiment Videos

Furosemide Distinguishes Central and Peripheral Tinnitus.

Risey1, Guth, Amedee

  • 1Department of Otolaryngology - Head and Neck Surgery, Tulane University School of Medicine, New Orleans, Louisiana, USA.

The International Tinnitus Journal
|January 1, 1995
PubMed
Summary

Intravenous furosemide may suppress tinnitus originating from the auditory periphery. This study suggests the drug selectively targets peripheral tinnitus causes, unlike central origins.

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Area of Science:

  • Otolaryngology
  • Neuroscience
  • Pharmacology

Background:

  • Intravenous furosemide exhibits a 50% tinnitus suppression rate.
  • Furosemide's known effects are in the auditory periphery, not the central nervous system.

Purpose of the Study:

  • To investigate if intravenous furosemide selectively suppresses tinnitus of peripheral origin.
  • To differentiate between peripheral and central tinnitus etiologies based on furosemide response.

Main Methods:

  • Recruited 14 patients with unilateral tinnitus post-labyrinthectomy or acoustic neuroma removal.
  • Administered intravenous furosemide and assessed tinnitus suppression.
  • Reviewed surgical records to identify spared cochlear nerve portions.

Main Results:

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  • 12 of 14 patients showed no response to intravenous furosemide.
  • The two patients who responded to furosemide had acoustic neuromas removed with spared cochlear nerve.
  • This suggests a correlation between peripheral etiology and furosemide efficacy.

Conclusions:

  • Intravenous furosemide appears to selectively suppress tinnitus originating from the peripheral auditory system.
  • The drug's efficacy is linked to the peripheral origin of tinnitus, not central causes.
  • Preserved cochlear nerve function during surgery may predict positive furosemide response.