Thyroid storm and hypercalcemic crisis as a result of unconventional treatment of Graves’ disease

We present a case of severe thyroid storm with simultaneous hypercalcemic crisis resulting from excessive intake of 5% Lugol’s iodine solution (5% iodine, 15% potassium iodide, 85% water; 10 drops/day) and vitamin D3 (10000 IU/day) during 2 months of unconventional treatment in a 78-year-old female with a history of hyperthyroidism in course of Graves’ disease. Supplements were prescribed by herbalist/healer before admission to the hospital. At the clinic, we started therapy with antithyroid drugs, inorganic iodide and corticosteroids but without positive effect. Patient’s condition kept deteriorating with loss of consciousness. Plasmapheresis (4 procedures) was required to successfully reduce thyroid hormone levels and finally total thyroidectomy was performed resulting in postoperative hypothyroidism and transient hypoparathyroidism. Additionally, patient suffered from serious complications such as Takotsubo cardiomyopathy and sepsis requiring intensive care unit. Treatment with corticosteroids led to secondary adrenal insufficiency. Following 2-month hospitalization, patient was discharged in stable condition.