is hypothyroidism related to atrial fibrillation
1 In this study, the risk of atrial fibrillation increased with decreasing levels of thyroid stimulating hormone compared with euthyroid individuals. 2  Both overt and subclinical hypothyroidism were associated with a lower risk of atrial fibrillation.
Hypothyroidism: People with this condition have low levels of thyroid hormones. This affects the part of the brain that controls breathing, as well as the nerves and muscles used to breathe. People with hypothyroidism can also be diagnosed with obesity, which can cause sleep apnea. Acromegaly: People with this condition have high levels of growth hormone.