Abstract:Hearing impairment may be related to several factors, including hearing loss due to certain genetic syndromes. Kearns-Sayre syndrome is characterized by mutations in mitochondrial DNA (deoxyribonucleic acid), responsible for energy production (adenosine triphosphate -ATP), which is extremely important for the development of structures that need it, such as the cochlea. The case was followed in the hospital, since 2000, due to the progressive characteristic of the hearing loss observed in the audiological exami… Show more
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