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Hypothyroidism is common in pregnancy with an estimated prevalence of 2-3% and 0.3-0.5% for subclinical and overt hypothyroidism respectively. [8] Endemic iodine deficiency accounts for most hypothyroidism in pregnant women worldwide while chronic autoimmune thyroiditis is the most common cause of hypothyroidism in iodine sufficient parts of the world.
Infants with sporadic congenital hypothyroidism show T4 concentrations in the umbilical cord suggesting the mother is still providing 25-50 percent of T4. If these infants are not screened soon after birth for their hypothyroidism and treated, the infants can become permanently intellectually disabled , since they can’t meet their bodies ...
Subclinical hypothyroidism is a biochemical diagnosis characterized by an elevated serum TSH level, but with a normal serum free thyroxine level. [48] [49] [50] The incidence of subclinical hypothyroidism is estimated to be 3-15% and a higher incidence is seen in elderly people, females and those with lower iodine levels. [48]
Certain medications can have the unintended side effect of affecting thyroid function. While some medications can lead to significant hypothyroidism or hyperthyroidism and those at risk will need to be carefully monitored, some medications may affect thyroid hormone lab tests without causing any symptoms or clinical changes, and may not require treatment.
While those with elevated TSH and normal levels of free T4 are considered to have subclinical hypothyroidism. [39] Risk factors for developing hypothyroidism during pregnancy include iodine deficiency, history of thyroid disease, visible goiter, hypothyroidism symptoms, family history of thyroid disease, history of type 1 diabetes or autoimmune ...
One study found that thyroid disorders, such as hypothyroidism (low thyroid hormone production), may decrease the production of estrogen and other hormones. However, the above study's sample size ...
Trump’s plan to eliminate taxes on Social Security benefits would help current beneficiaries, but future recipients may be hurt by the move.
Successful pregnancy outcomes are improved when hypothyroidism is treated. [129] Levothyroxine treatment may be considered at lower TSH levels in pregnancy than in standard treatment. [ 15 ] Liothyronine does not cross the fetal blood-brain barrier, so liothyronine (T 3 ) only or liothyronine + levothyroxine (T 3 + T 4 ) therapy is not ...