<s>[INST] My husband is 61 years old, diagnosed with congestive heart failure, had ablation a year ago. ever since then has episodes of hand tremors, shakiness. sometimes it goes away when he starts to move around, other times not. he wonders why this happens. Thank you [/INST] Hello, Rhythm control may be achieved in Atrial arrhythmias, especially atrial fibrillation with heart failure by Catheter ablation and pulmonary vein isolation. It seems he has developed Parkinsonism (tremors, shakiness-disappears on movement/less severe during voluntary activity) which is unrelated. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Tushar Kanti Biswas, Internal Medicine Specialist </s>