Researchers receive AHRF grant to investigate genetic hearing screening program for newborns

Published on March 15, 2013 at 1:36 PM · No Comments

Researchers at the Medical College of Wisconsin in Milwaukee, Wisconsin, have received a grant from the American Hearing Research Foundation to conduct a pilot study of genetic hearing screening for newborns at the Children's Hospital of Wisconsin to ensure the test can be performed and results shared with the parents in a timely and meaningful way. The ultimate goal is for the genetic hearing screening to become a standard part of newborn testing at hospitals throughout the United States. The AHRF grant is $20,000 for one year of research.

Christina L. Runge, PhD, Associate Professor, Otolaryngology & Communication Sciences and Physiology at the Medical College of Wisconsin, Milwaukee, and colleagues will investigate the feasibility of a multi-institutional, multi-disciplinary genetic hearing screening program for newborns. The screening will look for the most common genetic markers known to cause hearing loss at birth or predispose children to permanent hearing loss from environmental factors.

Congenital hearing loss affects approximately one in 1,000 babies born in the United States each year, and it is estimated that half of the cases are genetic, or inherited. Since 2009, universal screening of newborns for hearing loss has been standard in all 50 states, and currently 97% of newborns are screened for hearing loss at the time of birth by measuring an infant's responses to sound stimuli. However, these tests are only able to identify hearing loss present at the time of the screening, and they do not provide information about the cause of hearing loss. Several forms of hearing loss develop later in life, but so far, children at risk for these kinds of inherited hearing loss are not routinely tested and identified before the hearing problems start. By developing an effective protocol to genetically test newborns for mutations known to contribute to hearing loss at birth or later in life, appropriate follow up procedures, interventions and therapies can be started earlier in children who are at risk.

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