[Rare Complication of a Common Disease: Thyroid and Epileptic Seizures].

Rare Complication of a Common Disease: Thyroid and Epileptic Seizures Abstract. A myxedema crisis is a life-threatening complication of hypothyroidism (mortality 20-25 %). The diagnosis is made on clinical grounds and thyroid function tests. Treatment with levothyroxine (possibly combined with T3) should be instituted immediately, along with glucocorticoids, until co-existing adrenal insufficiency has been ruled out. Supportive measures and treatment of underlying diseases should be implemented. We are presenting the case of a patient with myxedema crisis complicated by tonic-clonic seizures and severe hyponatremia as first manifestation of primary hypothyroidism.