Atrial Fibrillation (AF) Ablation to Prevent Disease Progression of AF-induced Atrial Cardiomyopathy in Women and Men

This study tests whether ablation (a procedure that uses heat or energy to destroy the tissue triggering irregular heartbeats) for atrial fibrillation (AFib) can slow the progression of a related heart condition called atrial cardiomyopathy — where the upper chambers of the heart become enlarged and weakened. **You may be eligible if...** - You are 65–80 years old - You have confirmed atrial cardiomyopathy (enlarged left atrium) and ECG-confirmed AFib - Your AFib has not been present continuously for more than 1 year - You have not had previous ablation or surgery on the left atrium - Your doctor considers you a candidate for ablation **You may NOT be eligible if...** - Your AFib has been permanent or persistent for over 1 year - You have had a prior left atrium ablation or surgery - Your AFib is caused by a treatable condition like thyroid disease - You had a heart attack or acute coronary syndrome within the past 90 days Talk to your doctor to see if this trial is right for you.