1.Methods 9 patients with hyperthyroidism were performed thyroid function test,electrocardioagram,holter monitor ECG and the sinoatrial node function test.They are treated with the tapazole.
2.The diagnosis of a premature ventricular contraction is based on the ECG, but sometimes a Holter monitor - which is like a continuous ECG monitor used over a few days - is needed to capture the event.