期刊
ENDOCRINOLOGIA Y NUTRICION
卷 62, 期 6, 页码 270-276出版社
ELSEVIER ESPANA SLU
DOI: 10.1016/j.endonu.2015.02.005
关键词
Hypothyroidism; Arterial stiffness; Carotid intima-media thickness; Epicardial fat; Replacement therapy
Objective: To assess the relationship between primary hypothyroidism and subclinical atherosclerosis and its potential changes with L-thyroxine replacement therapy. Methods: A prospective cohort study including 101 patients with primary hypothyroidism and 101 euthyroid patients as controls was conducted from July 2011 to December 2013. Clinical, anthropometrical, biochemical, and ultrasonographic parameters were assessed at baseline and after one year of L-thyroxine replacement therapy. Results: At baseline, hypothyroid patients had significantly greater values of blood pressure, total cholesterol, VLDL cholesterol, left ventricular mass, epicardial fat, and carotid intima-media thickness as compared to controls. Total cholesterol, VLDL cholesterol, ventricular diastolic function, epicardial fat, carotid intima-media thickness, carotid local pulse wave velocity, pressure strain elastic modulus, and 13 arterial stiffness index showed a significant and positive correlation with TSH levels. After one year of replacement therapy, patients with hypothyroidism showed changes in total cholesterol, VLDL cholesterol, TSH, carotid intinna-media thickness, and arterial stiffness parameters. Conclusions: Primary hypothyroidism is characterized by an increased cardiovascular risk. In these patients, L-thyroxine replacement therapy for one year is related to decreased dyslipidemia and improvement in markers of subclinical carotid atherosclerosis. (C) 2014 SEEN. Published by Elsevier Espana, S.L.U. All rights reserved.
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