%0 Journal Article
%T Crian as com fenilceton¨²ria: avalia  o audiol¨®gica b¨¢sica e supress o das otoemiss es Children with phenylketonuria: basic audiological evaluation and suppression of otoacoustic emissions
%A Patr¨ªcia Souza Ribeiro
%A Tatiana Lopes Torres
%A Ana L¨²cia Pimenta Starling
%A Maria Cec¨ªlia Martinelli I¨®rio
%J Revista da Sociedade Brasileira de Fonoaudiologia
%D 2012
%I Sociedade Brasileira de Fonoaudiologia
%R 10.1590/s1516-80342012000300003
%X OBJETIVO: Avaliar a via auditiva de crian as com fenilceton¨²ria tratadas precocemente, por meio de audiometria, imitanciometria e supress o das emiss es otoac¨²sticas transientes. M¨¦TODOS:Estudo prospectivo transversal comparativo com amostra composta por 28 crian as, sendo 12 com fenilceton¨²ria e 16 sem a doen a. Foi realizada a pesquisa dos limiares de audibilidade por via a¨¦rea e ¨®ssea, logoaudiometria, imitanciometria e supress o das emiss es otoac¨²sticas transientes. RESULTADOS: A audiometria e a logoaudiometria estiveram normais em todos os participantes. Foram encontrados piores resultados para o ¨ªndice de reconhecimento de fala (IRF) no grupo com fenilceton¨²ria. A imitanciometria revelou curva normal para todas as crian as, mas a pesquisa dos reflexos estapedianos demonstrou que as crian as do grupo com fenilceton¨²ria apresentaram aumento nos seus limiares nas frequ¨ºncias de 2 e 4 kHz. A supress o das emiss es otoac¨²sticas transientes n o revelou diferen a na compara  o entre os grupos. CONCLUS O: A avalia  o audiol¨®gica b¨¢sica n o identifica altera  es na audi  o das crian as com fenilceton¨²ria, mas h¨¢ pior discrimina  o ao IRF e aumento nos limiares de reflexos estapedianos nessas crian as, podendo indicar dist¨²rbios do processamento auditivo. O estudo da supress o das otoemiss es demonstra integridade do sistema eferente olivococlear medial nas crian as com fenilceton¨²ria. PURPOSE: To evaluate the auditory pathways of children with early-treated phenylketonuria through audiometry, immitance tests, and suppression of transient otoacoustic emissions. METHODS: Prospective cross-sectional study with sample composed by 28 children: 12 with phenylketonuria and 16 without the disease. Participants underwent auditory evaluations composed of air- and bone-conduction pure-tone audiometry, speech audiometry, immittance tests and suppression of transient otoacoustic emissions. RESULTS: All participants presented normal results in pure-tone and speech audiometry; however, speech discrimination scores were lower on the phenylketonuria group. Immitance tests revealed normal tympanograms for all children, but stapedial reflex thresholds demonstrated higher thresholds in 2 and 4 kHz for children with phenylketonuria. The suppresion of transient otoacoustic emissions did not show difference in the comparison between groups. CONCLUSION: The basic audiologic assessment do not identify hearing disorders in children with phenylketonuria; however, speech discrimination scores were lower and stapedial reflexes were higher in these children, which may indicate auditor
%K Audi  o
%K Fenilceton¨²rias
%K C¨¦lulas ciliadas auditivas
%K Transtornos da audi  o
%K Emiss es otoac¨²sticas espontaneas
%K Hearing
%K Phenylketonurias
%K Hair cells
%K auditory
%K Hearing disorders
%K Otoacoustic emissions
%K spontaneous
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-80342012000300003