Brazilian journal of otorhinolaryngology · 2006
Auditory perception in Alport's syndrome.
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Viveiros Carla Mherlyn, Pereira Liliane Desgualdo, Kirsztajn Gianna Mastroianni
Аннотация
UNLABELLED: Alport's Syndrome is characterized by the presence of renal, hearing and visual disorders.
OBJECTIVE: To characterize the TOAE and the MOES activity (suppression effect) in individuals with Alport's Syndrome.
MATERIAL AND METHOD: This is a prospective study of a sample included ten individuals with a diagnosis of Alport's Syndrome. MOES recording was made in the presence and absence of contralateral stimulation (CLS) stimulation using the computer software ILO 92 - Otodynamics.
RESULTS: TOAE was present in the global response (A) and in frequency ranges of 1000, 1500, 2000 and 3000 Hz in 4 individuals (40%), and absent in 6 individuals (60%) with hearing loss. We observed no responses at 4000 Hz in the right and left ears. Individuals that presented global responses to TOAE also suppressed that response when there was noise.
CONCLUSION: The suppression effect also occurs with TOAE, suggesting that the hearing loss is predominantly the result of cochlear dysfunction.
OBJECTIVE: To characterize the TOAE and the MOES activity (suppression effect) in individuals with Alport's Syndrome.
MATERIAL AND METHOD: This is a prospective study of a sample included ten individuals with a diagnosis of Alport's Syndrome. MOES recording was made in the presence and absence of contralateral stimulation (CLS) stimulation using the computer software ILO 92 - Otodynamics.
RESULTS: TOAE was present in the global response (A) and in frequency ranges of 1000, 1500, 2000 and 3000 Hz in 4 individuals (40%), and absent in 6 individuals (60%) with hearing loss. We observed no responses at 4000 Hz in the right and left ears. Individuals that presented global responses to TOAE also suppressed that response when there was noise.
CONCLUSION: The suppression effect also occurs with TOAE, suggesting that the hearing loss is predominantly the result of cochlear dysfunction.