FEATURES OF HEART FAILURE IN PATIENTS WITH THYROTOXICOSIS

Abstract

Hyperfunction of the thyroid gland (thyroid gland) – thyrotoxicosis – is a widespread condition associated with an increase in the level of free thyroxine (fT4) and/or free triiodothyronine (fT3) with well -known clinical symptoms. In countries without iodine deficiency, it is detected in 0.5–3.9% of the population, while in older age groups, the frequency of occurrence is given the state reaches 11.8%. In regions with iodine deficiency, including in Russia, the incidence is even higher. Most often thyrotoxicosis develops in patients with diffuse toxic goiter (DTZ), multi- node toxic goiter and toxic thyroid adenoma. Bolshin the majority of such patients are elderly and senile, which both complicates clinical diagnosis and leads to more severe consequences. Thyrotoxicosis in them can manifest itself only by nonspecific symptoms: loss of body weight, arrhythmias, sometimes apathy, and be masked associated with symptoms of other diseases – atherosclerosis, arterial hypertension (AH), diabetes mellitus, chronic heart failure (CHF), etc.. On the contrary, young patients may remain able to work for a long time and not consult a doctor until the development of significant cardiovascular pathology.