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Etiological investigation of deaf in neonates screened in a universal newborn hearing screening program/Investigacao etiologica da deficiencia auditiva em neonatos identificados em um programa de triagem auditiva neonatal universal

Purpose: to describe the results of etiology of deaf in neonates screened in a universal newborn hearing screening program. Methods: a descriptive, cross-sectional and prospective study. The study included all newborns diagnosed with hearing loss identified in a universal newborn hearing screening p...

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Published in:Revista CEFAC 2014-03, Vol.16 (2), p.422
Main Authors: Pereira, Tania, Costa, Katia Cristina, Pomilio, Mariza Cavenaghi Argentino, Costa, Sueli Matilde da Silva, Rodrigues, Gabriela Ribeiro Ivo, Sartorato, Edi Lucia
Format: Article
Language:Spanish
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Summary:Purpose: to describe the results of etiology of deaf in neonates screened in a universal newborn hearing screening program. Methods: a descriptive, cross-sectional and prospective study. The study included all newborns diagnosed with hearing loss identified in a universal newborn hearing screening program from August 2003 to December 2006. The etiology of deaf was determined after detailed anamnesis performed by the otorhinolaryngologist; survey of serological tests for toxoplasmosis, rubella, cytomegalovirus, herpes, syphilis and HIV; tomography of the temporal bone and genetic tests. Results: 17 neonates were diagnosed with hearing loss in the period studied. 64.7% of cases presented as probable causes prenatal etiology, 29.4% perinatal causes and one child (5.9%) had unknown etiology. Of prenatal causes, 36.4% had confirmed genetic origin and 36.4% presumed etiology of heredity. We confirmed the presence of congenital infections in 18.2% of cases and one child (9%) had craniofacial anomalies as a possible etiology. The degree of hearing loss more frequently observed in the subjects studied was the profound (47.1%). Conclusion: the increased occurrence of etiologies in this study was of prenatal origin, followed by perinatal origin. KEYWORDS: Hearing Loss; /etiology; Screening Objetivo: descrever os resultados da investigacao etiologica da deficiencia auditiva realizada em neonatos rastreados em um programa de triagem auditiva neonatal universal. Metodos: estudo descritivo, transversal e prospectivo. Foram incluidos no estudo todos os neonatos diagnosticados com deficiencia auditiva identificados em um programa de triagem auditiva neonatal universal no periodo de agosto de 2003 a dezembro de 2006. A provavel etiologia da deficiencia auditiva foi determinada apos anamnese detalhada realizada pelo medico otorrinolaringologista; pesquisa das sorologias para toxoplasmose, rubeola, citomegalovirus, herpes, sifilis e HIV; tomografia dos ossos temporais e exames geneticos. Resultados: foram diagnosticados 17 sujeitos com deficiencia auditiva no periodo estudado. 64.7% dos casos estudados apresentaram como provavel etiologia causas pre-natais, 29.4% causas peri-natais e um sujeito (5,9%) apresentou etiologia desconhecida. Das causas pre-natais, 36.4% tiveram origem genetica confirmada e 36.4% etiologia presumida de hereditariedade. Foi confirmada a presenca de infeccoes congenitas em 18.2% dos casos e um sujeito (9%) apresentou anomalia craniofacial como provave
ISSN:1516-1846
DOI:10.1590/1982-0216201419712