June 22, 2017
Newborns with delayed thyroid-stimulating hormone elevation may experience a greater need for surgery and other invasive procedures compared with newborns without delayed elevation, according to published findings.
“The occurrence of [delayed] TSH weeks after a normal TSH measurement at the first neonatal screening is enigmatic,” the researchers wrote. “TSH levels in the second screening may be only mildly elevated, but ... in many neonates TSH levels reached 100 IU/mL or more. Considering the importance of normal thyroid function to neurocognitive development, especially during the early years of life, a second thyroid screen is currently recommended in certain at-risk populations.”