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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.
This is a shortened version of the eleventh chapter of the ICD-9: Complications of Pregnancy, Childbirth, and the Puerperium. It covers ICD codes 630 to 679 . The full chapter can be found on pages 355 to 378 of Volume 1, which contains all (sub)categories of the ICD-9.
Recognizing and evaluating hyperthyroidism in pregnancy is a diagnostic challenge. [58] Thyroid hormones are commonly elevated during the first trimester of pregnancy as the pregnancy hormone human chorionic gonadotropin (hCG) stimulates thyroid hormone production, in a condition known as gestational transient thyrotoxicosis. [ 8 ]
760 Fetus or newborn affected by material conditions which may be unrelated to present pregnancy. 760.7 Noxious influences affecting fetus or newborn via placenta or breast milk. 760.71 Fetal alcohol syndrome; 760.72 Exposure to narcotics, perinatal; 760.75 Exposure to cocaine, perinatal; 761 Fetus or newborn affected by maternal complications ...
Of those women who experience hypothyroidism associated with postpartum thyroiditis, one in five will develop permanent hypothyroidism requiring lifelong treatment. Postpartum thyroiditis is believed to result from the modifications to the immune system necessary in pregnancy, and histologically is a subacute lymphocytic thyroiditis .
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 conditions, and history of infertility or fetal loss.
An alternative phenotype with a largely inverse hormonal pattern is seen in several physiological and pathological conditions, including pregnancy, obesity, endurance training, and psychiatric diseases. It is typically associated with high-T3 syndrome, increased plasma protein binding of thyroid hormones, and an elevated set point of the ...
If left untreated, more serious complications could result, including birth defects in pregnancy, increased risk of a miscarriage, bone mineral loss [37] and, in extreme cases, death (e.g. indirectly through complications, or through a thyroid storm event). Graves' disease is often accompanied by an increase in heart rate, which may lead to ...