Cardiomiopatía mixedematosa. Reporte de un caso

introduction: hypothyroidism or gull's disease (1873) is the most frequent endocrine affection in all races worldwide.the annual incidence of new cases is 1-2 % of general population. it has been estimated that this rate reaches 6-7% of the female population over 60 years. presentation: it's a case report of a 32 years old black woman with hypothyroidism post-thyroidectomy. the patient gives up treatment and enters the hospital with cardiac insufficiency, pericardium effusion and symptoms of hypothyroidism with myxedema. discussion: symptoms such as dilatation with hypokynesia, infiltration with restrictions, pericardium disorders with associated effusión and dysrhythmias in some cases are usually imtegrated to this cardiomyopathy. conclusion: the patient had a satisfactory evolution after reenter the hospital with the former measures and treatment. in some cases damage is irreversible.