[Central hemodynamics in patients with hypothyroidism].

A study was made of the parameters of central hemodynamics in 48 patients with hypothyroidism in various degrees of its compensation. Tetrapolar chest rheography was used for this purpose. The content of the blood thyroid hormones was determined by radioimmunoassay. The patients developed a hypokinetic blood circulation, correlating to a degree of severity of hypothyroidism. Significant correlation between the levels of the thyroid hormones and indices of central hemodynamics was found. The method of tetrapolar chest rheography was shown to be a reliable and noninvasive test for assessment of the adequacy of substitution therapy in hypothyroidism and myocardial sensitivity to the thyroid hormones.