[Plasma filtration treatment in thyreotoxic crisis].

A 65-year-old man was treated three times in 4 consecutive days with plasma filtration for a severe thyroid storm. During the treatment the serum and filtrate levels of thyroxine, triiodothyronine, free T4, free T3, TBG, albumin and reverse-T3 were measured, and the results showed that, apart from reduction of the total hormone amount, the supply of binding sites for the free hormones is an important aspect in the treatment of thyroid storm.