An experimental study using sodium salicylate to reduce cochlear changes induced by furosemide

Archives of Oto-rhino-laryngology
L P RybakC Whitworth

Abstract

Furosemide is a loop diuretic which has been found to be ototoxic in humans and experimental animals. The ototoxic effects seem to be directed primarily towards the stria vascularis, since its shrinkage and extracellular edema have been observed in correlation with electrophysiologic changes. The present study was designed to examine the interaction of sodium salicylate and furosemide on the cochlear microstructures. Chinchillas weighing 400-600 g were used in all tests performed. The endocochlear potential (EP) was monitored continuously through a microelectrode inserted through the basilar membrane. A control group of animals was injected with 0.5 ml saline intravenously (IV) 30 min before 25 mg/kg furosemide was given. The experimental group of animals was injected with 50 mg/kg sodium salicylate IV 30 min before 25 mg/kg furosemide. The control animals were found to have a mean decrease in EP of 61.1 +/- 7.0 mV. In contrast, the experimental group had very little alteration of the EP following furosemide injection (18.7 +/- 3.9 mV). These findings suggest that sodium salicylate markedly reduces the ototoxic effect of furosemide. This effect may be mediated by an alteration of local or systemic prostaglandin metabolism, or m...Continue Reading

References

Dec 1, 1979·British Journal of Clinical Pharmacology·H Valette, E Apoil
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Citations

Jun 15, 1989·Hearing Research·A ErnstH J Mest
Jun 1, 1990·Hearing Research·L P RybakV Scott
May 1, 1995·Hearing Research·L P RybakH Kanno
Jul 6, 2000·Progress in Neurobiology·Y Cazals
Jan 24, 2012·Journal of Occupational Medicine and Toxicology·Marrigje A de JongHaim Sohmer
Sep 1, 1985·The Laryngoscope·L P Rybak
Sep 1, 1988·American Journal of Otolaryngology·L P Rybak, C Whitworth

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