Incidence of Hypothyreoidism after Radioactive Iodine-I131 Treatment in Dependance of Hyperthyreoidism Etiology and Therapy Dose.

Introduction: Consensus hasn't been yet achieved about optimal dose quantity that could prevent post therapy hypothyroidism, thus dosing approach varies among different centers. I131 doses can be fixed or calculated, although treatment outcomes don't differ significantly according to recent acknowledgments.

Aim: Determination of the incidence of hypothyroidism after radioiodine treatment (I131) in dependence of hyperthyroidism etiology and quantity of applied doses.