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1751 |
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Year: 2013 Vol. 17 Num. Suppl. 1 - - (371º)
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AUDIOLOGIC CHARACTERISTICS OF CHILDREN AFFECTED BY STROKE |
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Author(s): |
Pricila Sleifer, Fleming Salvador Pedroso, Josiane Ranzan, Monica Carminatti
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Abstract: |
OBJECTIVE: To verify the audiologic characteristics of children affected by a stroke in order to collaborate with the scientific and educational community and clarify the importance of interdisciplinary studies in this population. CASE REPORT: A total of 21 children aged 3 to 13 years (11 boys, 10 girls) who were affected by stroke (neurological diagnosis) and who attended a special outpatient unit for this condition at the Hospital de Clínicas de Porto Alegre (HCPA) were enrolled in the study with their parents' signed consent. The study was approved by the Ethics in Research Committee of the HCPA under protocol 04-242. Hearing assessments were performed using pure tone audiometry, vocalisation, acoustic immittance measures, evoked potential, and evoked auditory brainstem response (ABR). The majority, 14 children, had a lesion in the left hemisphere, 5 children had lesions in the right hemisphere, and 2 had bilateral lesions. The location of the lesion was the parietal cortex for most children (n = 8), followed by the subcortical (n = 6). Hearing assessment findings were as follows: normal hearing, recognition ratio speech less than 96%, type A tympanometry, ipsilateral and contralateral acoustic reflexes present otoacoustic emissions distortion product in both ears. In ABR, absolute latencies and interpeak latencies with normal thresholds between 15 and 20dB HL in both ears. CONCLUSION: Peripheral audiological evaluations do not provide information on the synchronization of the auditory brainstem after stroke; thus, it is believed to be of utmost importance to auditory processing evaluation the research of long latency auditory evoked potentials in this population.
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