Thyroid ima artery embolization for the treatment of Graves’ disease and thyroid storm

Graves' disease may be managed with thyroid embolization when other traditional strategies are less suitable. To date, no reports exist on the embolization of the thyroid ima artery for Graves' disease or the outcomes of this procedure. Here, we present a safe and successful report of thyroid ima artery embolization in a neutropenic patient with thyroid storm. A 30-year-old female with a history of Graves' disease presented to a community hospital with heat intolerance, anxiousness, tachycardia, and tachypnea. Further laboratory testing prompted the diagnosis of thyroid storm. Embolization of the thyroid was chosen for management because total thyroidectomy risked infection in the setting of methimazole-induced neutropenia. The patient's thyroid ima artery was significantly enlarged and had a large perfusion distribution across the thyroid. It was selected for embolization, along with the right superior thyroid artery, and successfully resulted in a 60% reduction of thyroid perfusion. No complications resulted from this procedure. Although the prevalence of patients with thyroid ima artery is low, this artery can be safely and effectively embolized for the management of Graves' disease and thyroid storm.