Hypothyroidism in Pregnancy Clinical Trial
Official title:
Efficacy Of Non Invasive Diagnostic Procedures In Evaluating The Influence Of Maternal Autoimmune Thyroid Gland Disease On Fetus
Non invasive methods: maternal antithyroid antibodies and ultrasound measurement of the fetal thyroid gland could be an important tool for detecting fetal thyroid dysfunction in mothers with autoimmune thyroid disease.
Autoimmune thyroid disease complicates 5-20% unselected pregnancies. The crucial impacting
factor on the pregnancy outcomes in mothers with autoimmune thyroid disease is the thyroxine
level changes.
But, fetal hypo or hyperthyroidism can be found in treated pregnant women with autoimmune
thyroid disease, even when their thyroid hormones are in normal range, because thyroid
antibodies, antithyroid drugs and iodine pass the placenta.
Our previous results show that high fetal free thyroxine (fT4) levels measured by
cordocentesis are unexpectedly frequent in women with autoimmune thyroid disease, including
maternal autoimmune hypo- and hyperthyroidism. Increasing awareness that even some mild
fetal disorder can have an impact on later neurophysiologic development and the health of an
individual makes the recognition and therapy of fetal hypo- or hyperthyroidism an
increasingly significant domain of interest. According to our results, fetal fT4
concentrations did not correlate neither with dose of medication nor with ultrasound
biometric parameters; the range for maternal thyroid-stimulating hormone (TSH) correlated
predominantly with normal fT4 can not be marked off. The type and concentration of
antithyroid antibodies might have some prognostic value.
There is a growing list of publications referring to the ultrasound measurement of the fetal
thyroid as an important tool for detecting fetal thyroid dysfunction. Fetal thyroid
measurement became a part of the clinical guidelines for pregnancies complicated with
maternal thyroid disease.
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Observational Model: Case Control, Time Perspective: Prospective
Status | Clinical Trial | Phase | |
---|---|---|---|
Completed |
NCT01528904 -
Maternal Autoimmune Thyroid Disease and Fetal Thyroxin
|
N/A | |
Recruiting |
NCT04288531 -
Iodine Impact on Thyroid Function and Psychomotor Development, Observational Study in the Portuguese Minho Region
|