Abstract:
Amiodarone-induced hyperthyroidism (AIH) is a serious complication in patients with arrhythmias undergoing
long-term antiarrhythmic therapy. This article presents data from a retrospective observation of 16 patients with
AIH who were hospitalized in the cardiology department. Hormonal parameters (TSH, free T4, T3, anti-TSH
receptor antibodies) and cardiological indicators (heart rate, heart rate variability — SDNN) were analyzed before
and after 6 months of antithyroid therapy. The results demonstrated a significant improvement in both hormonal
and cardiac status, indicating the necessity of timely diagnosis and treatment of AIH. Particular attention is paid to
the differential diagnosis of AIH types, treatment selection, and evaluation of effectiveness from the cardiologist's
perspective.