Reduced Incidence of Congenital and Prelingual Deafness

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Abstract
There appears to be an absolute reduction in the occurrence of congenital and prelingual deafness. Our institute records show a declining number of such children beginning about the end of 1967 and continuing to the present. We have applied a sequential analysis of etiologies in 117 children, by year, from 1961 to 1969 inclusive. The cyclic increase and decrease in German measles related to the recent epidemic confirms previous reports but there is also definite reduction in kernicterus, prematurity, and other causes. Other factors probably include improved prenatal, natal, neonatal care; decreased birth rate; and increased use of preventive abortion. Widespread vaccination for measles, mumps, and now also rubella, and prompt administration of Rh globulins could permanently reduce congenital and prelingual deafness. New causes may appear, however. Annual registration of all congenital and prelingual deafness is recommended.

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