Subclinical hypothyroidism (SCH) is described as an elevated TSH and normal fT4 and fT3. 2 This is much more common with autoimmune thyroid disease, and about 2% to 5% of patients with SCH ...

Some thyroid diseases like Hashimoto's thyroiditis and Graves' disease are autoimmune disorders. These are diseases in which the immune system targets and attacks normal thyroid cells.

The difference between the common form of Hashimoto’s and Hashimoto’s encephalopathy is that HE patients present with normal TSH levels.

Menopause is a female reproductive milestone that begins in most women between the ages of 45 and 55. It marks the end of the menstrual cycle, and women can no longer conceive, at least not naturally.

There are several causes of hypothyroidism. The most common is an autoimmune disease called Hashimoto’s thyroiditis, where ...

She has myxedema features and her speech is slow, but her TSH is normal.” I said, “Well, central hypothyroidism can do that; check a free T4.” In fact, her free T4 level was very low.

A nascent hypothesis regarding pulmonary arterial hypertension (PAH) is that there is a link between thyroid dysfunction and PAH risk; much remains to be investigated to prove causality.

LT4 plus L3 therapy vs LT4 therapy alone was associated with reduced mortality and dementia risks among patients with hypothyroidism.

Enrollment criteria were treatment for at least six months, stable l-thyroxine dosing 100-200 µg/day for at least two months, and TSH level 0.1-4.8 mU/L (J Clin Endocrinol Metab. 2006;91:2624-2630).

TSH must remain in the normal range," Bianco said. He also reviewed two meta-analyses examining the effect of combination LT4+LT3 vs LT4 monotherapy, both including 18 randomized trials.