4 in VLBW infants (< 30 weeks or< 1200-1500 g) decline progressively after day 1, reaching
a nadir at 1 to 2 weeks of age. This relative hypothyroxinemia is most profound in those …

Transient neonatal hypothyroxinemia is very common in preterm infants. The literature on
the effect of this hypothyroxinemia is, however, controversial, and large or long-term follow …

OBJECTIVE: To determine whether cord ferritin (CF) concentration, an index of in utero iron
status, is associated with auditory neural maturation in premature infants. STUDY DESIGN …

Preterm newborns have low serum thyroxine (T 4) levels compared with late-gestational
fetuses. Low thyroid hormone levels are associated with increased severity of neonatal …

Objective. To determine whether brainstem maturation as measured by brainstem auditory-
evoked responses (BAERs) in preterm infants is a function of dietary intake. Study Design …

Thyroid hormones play an important role in central nervous system development, starting
from the exclusive maternal contribution in the first trimester and transitioning to a fully …

OBJECTIVE: Apnea of prematurity (AoP) is, in part, a reflection of brainstem-mediated
respiratory control system maturation. We previously demonstrated changes in brainstem …

Functional alterations in the central nervous system and peripheral nerves are well
documented in overt hypothyroidism, but not in subclinical hypothyroidism. Twenty-seven …

Background Auditory neural myelination (ANM) as evaluated by auditory brainstem evoked
response (ABR) during the neonatal period has been used as a surrogate outcome for long …

Thyroid gland diseases resulting from an autoimmunological process may influence the
hearing organ. The aim of this study was to assess peripheral and central parts of the …