1. Hyperthroidism in functional thyroid autonomy can be prevented in a euthyroid stage.

2. A total of 75–85% of thyroid operations are performed on euthyroid goiters; 70% of them are bilateral.

3. The α-agonist methoxamine produced a small positive inotropic response in euthyroid left atria but not in papillary muscles.

4. In the postoperative management of euthyroid goiter we claim a life-long prophylaxis with thyroid hormone preparations.

5. 27 subjects with a negative TRH test were selected among patients with euthyroid goiter treated by thyroid hormones.

6. An absolute indication for surgery is diagnosed or suspected struma maligna; relative indications are hyperthyroidism and euthyroid goiter.

7. At stimulation frequencies above 1.0 Hz, the absolute and relative levels of DT and −dT/dt of hyperthyroid myocardium were elevated over euthyroid preparations.

8. Four men and one woman, age range 29–55 years, euthyroid, and not previously on alpha-methyldopa, had their drugs replaced by placebo for 4 weeks, and then alpha-methyldopa or hydrochlorothiazide was randomized single Blindedly to patients.