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Hypothyrosis syndrome: role of triodthyronine in diagnostics and combination therapy (review of literature).

I A TsanavaS V BulgakovaA V Melikova
Published in: Klinicheskaia laboratornaia diagnostika (2021)
Hypothyroidism syndrome is one of the most common pathologies of the endocrine system. Assessment of euthyroid status can not always be carried out according to the TSH indicator. In a number of patients with normal TSH levels and a clinical picture of hypothyroidism, the serum T3 concentration is determined at the lower limit of the norm or below it with a high content of free T4 in the blood. In world practice, positive experience has been accumulated in the combined use of preparations of sodium levothyroxine and liothyronine, a synthetic form of exogenous triiodothyronine. A number of studies have noted the advantages of using combination therapy for hypothyroidism over levothyroxine monotherapy in certain groups of patients. Possible reasons for the ineffectiveness of standard treatment for hypothyroidism are described.
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