Journal
EUROPEAN JOURNAL OF INTERNAL MEDICINE
Volume 38, Issue -, Pages 17-24Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ejim.2016.12.015
Keywords
Subclinical hypothyroidism; Lipid metabolism; Cardiovascular disease; Cardiovascular risk
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Subclinical hypothyroidism is defined by elevated serum thyrotropin in presence of normal free thyroid hormones. Lipid metabolism is influenced by thyroid hormone and many reports showed that lipids status worsen alongwith TSH level. Subclinical hypothyroidismhas been also linked to other cardiovascular risk factors such as alteration in blood pressure and increased atherosclerosis. Further evidences suggested that mild dysfunction of thyroid gland is associated withmetabolic syndrome and heart failure. Thyrotropin level seems the best predictor of cardiovascular disease, in particular when its levels are above 10 mU/L. However, despite these observations, there is no clear evidence that levothyroxine therapy in subjects with milder form of subclinical hypothyroidism could improve lipid status and the other cardiovascular risk factors. In this review, we address the effect of thyroid hormone and cardiovascular risk, with a focus on lipid metabolism. (C) 2016 European Federation of Internal Medicine. Published by Elsevier B. V. All rights reserved.
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