A total or subtotal thyroidectomy can be performed, and will usually cure Grave's disease. The downside is a 100% chance of becoming hypothyroid, as well as a 2 or 3 percent risk of injury to the nerves that control your vocal cords, and a 3 to 5 percent likelihood of hypocaclemia (low calcium in the blood) from parathyroid gland injury or removal.
Based upon your description of the severity of your Grave's disease, I agree with your doctors that definitive, permanent treatment should be undertaken at this time.
Sincerely/ Robert A. Wascher, MD, FACS
http://doctorwascher.com
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