USMLE Forum Archives - USMLE Step 3 - gestational thyrotoxicosis
gestational thyrotoxicosis
zkadhem - 07-23-09 00:18
Cause: High level of HCG, which has thyroid stimulating properties.
It occurs in the first trimester mostly between 8-11 weeks of gestation. Doesn't go beyond 14 weeks of gestation.
Dx:
TSH= normal or very slight decrease
Free T4= Normal or slightly increased.
zkadhem - 07-23-09 00:18
Cause: High level of HCG, which has thyroid stimulating properties.
It occurs in the first trimester mostly between 8-11 weeks of gestation. Doesn't go beyond 14 weeks of gestation.
Dx:
TSH= normal or very slight decrease
Free T4= Normal or slightly increased.
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#1
Re: gestational thyrotoxicosis conym5 - 07-23-09 07:59 compolications of hypo and hyperthyroidism during pregnency
uncontrolled hyporthyroidism : Spontaneous Abortions
uncontrolled hyperthyroidism : Abortions, IUGR, Prematurity
#2
Re: gestational thyrotoxicosis mtniharika - 01-09-10 02:31 The thyroid gland is physiologically stimulated in normal early pregnancy.
Estrogen stimulates thyroid binding globulin (TBG) formation and increases its half life, with maximal TBG levels around 20 weeks, leading to increases in serum thyroxine levels. In addition, because of the increased glomerular filtration rate during pregnancy, renal iodine loss may occur, potentially causing both maternal and fetal hypothyroidism in geographic areas of low dietary iodine.Between 1% and 16% of pregnant women have postpartum thyroiditis; maternal thyroid deficiency during pregnancy may adversely affect subsequent neuropsychological development of the child, and there is a relationship between miscarriage and thyroid dysfunction
#3
Re: gestational thyrotoxicosis babbu5508 - 02-24-11 15:27 Clinical thyrotoxicosis is caused by circulating hCG with higher biological activity in pregnant women with hyperemesis. ..................
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