Newborn screening for congenital adrenal hyperplasia
Abstract
Classic CAH (salt-wasting and simple virilizing) meets all of the recommended criteria for newborn screening. There are reliable and efficient newborn screening tests, the disorder results in high morbidity and mortality if left undetected, there is effective treatment that reduces negative outcomes, and there is a relatively high incidence. When compared with the case findings without the benefit of screening, the data from screening programs show reduced adrenal crises, reduced incorrect sex assignments, and reduced deaths. Racial/ethnic prevalence differences are present in newborn screening program data. The Texas data indicate a lower disease frequency in African-Americans when compared with Caucasians, and international data indicate higher frequencies in native Yupik Eskimos, Brazilians, residents of La Reunion, and Filipinos. When worldwide clinical ascertainment data are compared with newborn screenng data, it is clear that newborns with CAH (especially males) die when screening is not done. To be effective in reducing mortality, newborn screening must be performed soon after birth, and the results must be available quickly so that early salt-wasting crises can be averted. It is preferable that newborn screening lab...Continue Reading
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