Low Serum Thyroxine on Initial Newborn Screening Is Associated With Intraventricular Hemorrhage and Death in Very Low Birth Weight Infants

Abstract

In our population of very low birth weight infants, TH has an incidence of 85%. Very low T4 values on initial newborn screening are associated with increased odds of death and IVH. Additional investigation is needed to determine whether low serum thyroxine level contributes to IVH and neonatal death or whether it is simply an associated factor.