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Signs and symptoms of ototoxicity include tinnitus, hearing loss, dizziness and nausea and/or vomiting. [3] The diagnosis of medicine-induced ototoxicity is challenging as it usually shows only mild symptoms in early stages. Thus, prospective ototoxicity monitoring would be required when patients are using ototoxic medications. [1]
Ototoxicity is the property of being toxic to the ear (oto-), specifically the cochlea or auditory nerve and sometimes the vestibular system, for example, as a side effect of a drug. The effects of ototoxicity can be reversible and temporary, or irreversible and permanent.
Ototoxic drugs also may cause subjective tinnitus, as they may cause hearing loss, [15] or increase the damage done by exposure to loud noise. [39] This damage may occur even at doses not considered ototoxic. [40] More than 260 medications have been reported to cause tinnitus as a side effect. [41]
Furosemide is a known ototoxic agent generally causing transient hearing loss but can be permanent. Reported cases of furosemide-induced hearing loss appeared to be associated with rapid intravenous administration, high dosages, concomitant renal disease, and coadministration with other ototoxic medication.
Hearing loss can also be attributed to genetic mutations, noise exposure, exposure to therapeutic drugs that have ototoxic side effects and chronic other conditions.
Tinnitus retraining therapy, a treatment originally used to treat tinnitus, uses broadband noise to treat hyperacusis. Pink noise can also be used to treat hyperacusis. By listening to broadband noise at soft levels for a disciplined period of time each day, some patients can rebuild (i.e., re-establish) their tolerances to sound.
This bone prevents structures within the ear from working properly and causes hearing loss. For some people with otosclerosis, the hearing loss may become severe. Ototoxic drugs Drugs such as a special class of antibiotics, aminoglycoside antibiotics, that can damage the hearing and balance organs located in the inner ear for some individuals.
What causes tinnitus? New research suggests that it may be due to hidden hearing loss, not detected on common hearing tests, and may have similarities to phantom limb pain.
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