[Serious jaundice and thyrotoxic myocardiopathy with atrial thrombus].

Jaundice related to thyrotoxicosis and not as an effect of antithyroid drugs is a rare complication that usually occurs in the presence of heart failure (HF) or hepatitis. We report a case of a 54-year-old white woman with hyperthyroidism caused by Graves's disease and jaundice despite methimazole suspension. Bilirubin fluctuated at high values, between 30.

[Reversible dilated cardiomyopathy related to hyperthyroidism].

Heart failure is one of the most known complications of hyperthyroidism, more commonly high-output heart failure, but some patients may develop dilated cardiomyopathy with low ejection fraction. We report a 35-year-old man, with hyperthyroidism, atrial fibrillation, and severe heart failure with 43% of ejection fraction. After the definitive treatment of the hyperthyroidism with radioiodine, heart failure was reverted, with symptomatic improvement and echocardiographic normalization including a normal ejection fraction (69%).