Changes in thyroid-stimulating antibody activity in Graves' disease treated with antithyroid drug and its relationship to relapse: a prospective study.

Thyroid-stimulating antibodies (TSAb) were found in 51 patients (83.6%) with untreated Graves' disease. The mean TSAb index reached the normal level after 6 months of antithyroid drug therapy. In 9 patients (14.8%), TSAb remained persistently positive during and after antithyroid drug therapy, and relapse occurred in all. In 42 patients (68.8%), TSAb… CONTINUE READING