Tulane iPredict, Prevent Study to Evaluate the Progression of Atrial Myopathy.

This study is tracking how the heart's upper chambers (atria) change over time — a condition called atrial myopathy — in people with atrial fibrillation or those at moderate to high risk for heart disease. It also tests whether a digital health monitoring approach can help detect and prevent disease progression. **You may be eligible if...** - You have atrial fibrillation and are between 18 and 79 years old, OR - You are 40 to 79 years old with a moderate or high 10-year cardiovascular risk score - You have internet or email access at home - You have a compatible Android phone or tablet **You may NOT be eligible if...** - You are outside the eligible age range - You do not have internet or device access - You have conditions that make participation unsafe Talk to your doctor to see if this trial is right for you.