Pre-Conference Workshops & Meetings
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Delayed Onset of Hearing Loss in Children: Nancy Melinda Young and Lisa Weber, Children's Memorial Hospital
  Children whose onset of loss is delayed do not benefit from the safety net provided by neonatal hearing screening. Children at significant risk for progressive sensorineural hearing loss include those with inner ear malformations, Connexin 26 mutations, Charge syndrome, congenital CMV, auditory neuropathy spectrum disorder, history of congenital diaphragmatic hernia, and bacterial meningitis. Children with complex neonatal histories requiring neonatal intensive care unit care as also considered to be at risk for delayed onset hearing loss. However, children who have no identifiable risk factor or etiology that places them in a risk category also may experience delayed onset and progressive loss. Diagnoses and risk factors often associated with delayed onset hearing loss will be reviewed as well as our approach to monitoring children with hearing loss. The presentation will include case studies. The finding of a study done at our medical center which revealed that 30% of children who received a cochlear implant had passed newborn hearing screening will be presented. The average age of diagnosis of the implanted children who had passed newborn hearing screening was significantly older that those who had failed hearing screening. The implications of these findings will be discussed.