Emissões otoacústicas e medidas de imitância acústica com sonda de 226 e 1000Hz em lactentes com refluxo gastroesofágico

• Autor(a) principal: Camboim, Elizângela Dias [UNIFESP]
• Data de Publicação: 2010
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UNIFESP
• Texto Completo: http://repositorio.unifesp.br/handle/11600/9451
• topic: Lactentes; Emissões otoacústicas espontâneas; Refluxo gastroesofágico; Infants; Spontaneous otoacoustic emissions; Gastroesophageal reflux

Objective: To examine and compare the otoacoustic emissions results evoked by transient stimulus and the acoustic immittance measures in infants with and without gastroesophageal reflux, and associate the otoscopic results with the tympanometric results in 226 and 1000Hz probes. Method: it was carried out an otorhinolaringology evaluation, otoacoustic emission evoked by transient stimulus, tympanometry with 226 and 1000 Hz probe and ipsilateral acoustic reflex in 118 infants, being 63 with gastroesophageal reflux and 55 without referred by pediatricians or Gastroenterology pediatricians, with clinical diagnosis. It was used the masking technique (double blind), in which the evaluator did not know the results of other evaluations Results: There was a higher incidence of failure in TEOAE in infants with bilaterally gastroesophageal reflux. There was also a higher incidence of tympanometric change in the group with reflux gastroesogágico with two types of probe. There was a lower incidence of ipsilateral reflex ( 226 probe) in the group with reflux. Tympanometry with 1000 Hz probe showed higher correlation with the results of otoacoustic emissions and otoscopy. Conclusions: Infants with gastroesophageal reflux showed higher occurrence of acoustic immittance change in both types of probes and failed OAET more than the infants without reflux. There was even greater association between the results of otoscopy with tympanometry 1000Hz probe.