Major illnesses can disturb the levels of hormones produced by the thyroid gland. In this study a team of researchers looked at changes in thyroid hormones in babies who were being given extracorporeal membrane oxygenation (ECMO). 21 babies took part in the study which found that while levels of the thyroid hormones declined – from an already low level – one hour and 12 hours after ECMO started they had recovered to be higher than the initial level 48 hours after ECMO had begun. The researchers concluded that “thyroxine therapy is not required during ECMO.”
You can read the abstract of this article here.