Amiodarone-induced hyperthyroidism in a patient with Marfan's syndrome and Wolff-Parkinson-White syndrome

In a 20-year-old patient with Marfan's syndrome and Wolff-Parkinson-White syndrome, effective amiodarone treatment had to be stopped due to serious hyperthyroidism. Diagnosis and therapy of amiodarone-induced dysthyroidism is discussed.