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An experimental study of vancomycin-induced cochlear damage
R A Tange1, H L Kieviet, J von Marle
1Department of Otorhinolaryngology, Academisch Medisch Centrum, Universiteit van Amsterdam, The Netherlands.
Abstract:
Vancomycin has been successfully used clinically for many years. Although early reports found ototoxicity to be a side effect of this antibiotic, later studies could not confirm this. For this reason we have started an experimental study in an animal model on the ototoxic effects of vancomycin. We now report the results of this study. Fourteen healthy Mongolian gerbils were treated with intraperitoneal injections of vancomycin (80 mg/kg per day) for a 2-week period. Before and after treatment each animal's hearing was evaluated by evoked response audiometry. Post mortem the cochleae were investigated by scanning electron microscopy in Amsterdam and by microdissection with surface preparations (hair cell counting) in Stockholm. The results of this study show that there is no clear evidence for the existence of ototoxicity due to vancomycin in this dosage.
Insights
This study investigated vancomycin
Area of Science:
- Ototoxic effects of antibiotics
- Pharmacology and toxicology
- Auditory system research
Background:
- Vancomycin is a widely used antibiotic.
- Conflicting reports exist regarding its ototoxicity.
- Previous studies have yielded inconclusive results on vancomycin's impact on hearing.
Purpose of the Study:
- To experimentally assess the ototoxic effects of vancomycin.
- To investigate potential hearing damage associated with vancomycin treatment.
- To clarify the safety profile of vancomycin concerning auditory function.
Main Methods:
- Utilized a Mongolian gerbil animal model.
- Administered vancomycin intraperitoneally at 80 mg/kg/day for two weeks.
- Evaluated hearing using evoked response audiometry before and after treatment.
- Conducted post-mortem cochlear analysis via scanning electron microscopy and microdissection with hair cell counting.
Main Results:
- No clear evidence of ototoxicity was observed in gerbils treated with vancomycin.
- Auditory function remained unaffected in the experimental group.
- Cochlear hair cell counts showed no significant damage attributable to vancomycin.
Conclusions:
- Vancomycin, at the tested dosage and duration, does not appear to cause ototoxicity in this animal model.
- The findings suggest vancomycin may be safe concerning auditory health.
- Further research may be warranted to confirm these ototoxicity findings in diverse models.