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KMID : 1039520180220020059
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Journal of Audiology & Otology
2018 Volume.22 No. 2 p.59 ~ p.68
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Ototoxicity: A Challenge in Diagnosis and Treatment
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Ganesan Purushothaman
Schmiedge Jason
Manchaiah Vinaya
Swapna Simham
Dhandayutham Subhashini
Kothandaraman Purushothaman Pavanjur
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Abstract
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Ototoxicity is the pharmacological adverse reaction affecting the inner ear or auditory nerve, characterized by cochlear or vestibular dysfunction. The panorama of drug-induced hearing loss has widened over last few decades. Although ototoxic medications play an imperative role in modern medicine, they have the capacity to cause harm and lead to significant morbidity. Evidence has shown early detection of toxicity through prospective ototoxicity monitoring allows for consideration of treatment modifications to minimize or prevent permanent hearing loss and balance impairment. Although many ototoxicity monitoring protocols exist, their practicality is questionable due to several factors. Even though the existing protocols have proven to be effective, certain lacunae in practice have been encountered due to discrepancies among recommended protocols. Implementation of these protocols is mostly held back due to the incapacitated status of the patient. The choice of early ototoxicity identification techniques is still debatable due to variables such as high degree of sensitivity, specificity and reliability, less time consumption and less labour-intensive to the patient. Hence, the diagnosis and effective treatment of ototoxicity is challenging, even today. A stringent protocol with more practicality encompassing all elements aimed at profiling the effects of ototoxicity is greatly needed. This review describes an efficient application of ototoxicity monitoring and treatment protocol as an attempt to reduce the challenges in diagnosis and management of ototoxicity.
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KEYWORD
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Ototoxicity, High-frequency audiometry, Distortion product of otoacoustic emission, Ototoxicity monitoring
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