Thyroid function changes and cardiovascular health in older people
There should be a higher threshold for treating thyroid problems in older people, studies suggest
Thyroid hormones have significant effects on the cardiovascular system. In general, high levels of thyroid hormones, or hyperthyroidism, are associated with an increased risk of altered heart rhythms, such as atrial fibrillation.
The reduced levels of thyroid hormone found in hypothyroidism may cause atherosclerosis. Recent large studies have sought to identify age-associated changes in thyroid function and their relevance to cardiovascular mortality in older people.
Thyroid function is best assessed by measuring thyroid-stimulating hormone (TSH). When there are reduced levels of the thyroid hormone thyroxine in the blood, TSH levels rise. The emerging pattern suggests that...
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