Permanent atrial fibrillation in heart failure patients as another condition with increased reverse triiodothyronine concentration.
OBJECTIVE: To fully investigate the thyroid hormonal function in patients with the most common arrhythmia - atrial fibrillation.
MATERIALS AND METHODS: 120 patients (aged 55-85 yrs) with symptoms of congestive heart failure exacerbation and no other concomitant disorders (inclusion criteria: normal cardiac tropon.....