Mechanisms of Ototoxicity and Otoprotection

Otolaryngol Clin North Am. 2021 Dec;54(6):1101-1115. doi: 10.1016/j.otc.2021.08.007.

Abstract

Ototoxicity refers to damage to the inner ear that leads to functional hearing loss or vestibular disorders by selected pharmacotherapeutics as well as a variety of environmental exposures (eg, lead, cadmium, solvents). This article reviews the fundamental mechanisms underlying ototoxicity by clinically relevant, hospital-prescribed medications (ie, aminoglycoside antibiotics or cisplatin, as illustrative examples). Also reviewed are current strategies to prevent prescribed medication-induced ototoxicity, with several clinical or candidate interventional strategies being discussed.

Keywords: Aminoglycosides; Blood-labyrinth barrier; Cochleotoxicity; Ototherapeutics; Ototoxicity monitoring; Platinum-based therapeutics; Vestibulotoxicity.

Publication types

  • Review

MeSH terms

  • Aminoglycosides / adverse effects
  • Anti-Bacterial Agents / adverse effects
  • Cisplatin / adverse effects
  • Ear, Inner*
  • Humans
  • Ototoxicity*

Substances

  • Aminoglycosides
  • Anti-Bacterial Agents
  • Cisplatin