[National neonatal hearing screening and Central Registry for Hearing Loss in Children].

Implementation of Central Registry for hearing loss in children can answer many questions about the frequency, etiology and habilitation of hearing impairment by infant. Precondition for realize is implementation of universal newborn hearing screening. With introduction this screening we decrease dramatically the age of children, of which we predict, diagnosed and intervened bilaterally hearing loss. Despite the progress of the medicine, in particularly of the genetic, the etiology of some cases with hearing loss stay unknown. Future investigations in this field, inclusive molecular-genetic, is necessary to determine hereditary hearing loss by children in Bulgaria.