Cardiac masks of hypothyroidism

Hypothyroidism is a common condition of thyroid hormone deficiency that is easily diagnosed and corrected. But often the symptoms of thyroid insufficiency are nonspecific and similar to other somatic diseases, especially in older patients, which causes difficulties in timely diagnosis and treatment. Monosymptomatics often leads to an erroneous diagnosis, these are the so-called therapeutic «masks» of hypothyroidism. The article discusses a clinical case of late diagnosed hypothyroidism occurring under a cardiological mask was reviewed. Patient treatment for cardiovascular failure did not bring the expected result. Additional diagnostics revealed autoimmune thyroiditis, primary hypothyroidism, severe course. To correct thyroid function, the patient was prescribed L-thyroxine, which led to the disappearance of symptoms from the cardiovascular system.