Gross motor development in infants with bilateral profound hearing loss associated with GJB2 mutations

概要

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The relationship betwee congenital hearing loss and delay in gross motor development in early infancy have been considered previously. With the development of systems for newborn hearing screening, the needs for early training programs for deaf infants and their parents is increasing. At the Saitama Children's Medical Center, pediatric neurologists examine them and assess their developmental stages. Our objective was to demonstrate the characteristics of infants with a single factor in genesis of deafness.<br/> We conducted a retrospective developmental review of the nine infant cases with hearing loss due to GJB2 mutations. Perinatal complications, congenital cytomegalovirus infection, and obvious inner ear malformation were excluded. We reviewed the course of gross motor development during the first eighteen months of life. All infants were able to control their head position in the first five months and walk alone in the first eighteen months. The ages of sitting up without support were all different. Their postural control of sitting up and gait in early stages were unstable due to hypotonia of trunkal muscles.
Japan Society for Pediatric Otorhinolaryngologyの論文