DETECTion of PeriOperative Atrial Fibrillation After Noncardiac Surgery

This study is monitoring patients after non-cardiac surgery to detect irregular heart rhythms — specifically a condition called atrial fibrillation — that can occur after surgery and increase the risk of stroke. Participants wear a heart monitor to detect these rhythms. **You may be eligible if...** - You recently had non-cardiac surgery (within the past 72 hours) that required at least an overnight hospital stay - You are at higher risk based on your age and heart history (e.g., age 55–64 with established heart disease or a stroke risk score ≥3; age 65–74 with heart disease or score ≥2; or age 75 or older) - You are willing to wear a heart monitoring device **You may NOT be eligible if...** - You have a known history of atrial fibrillation (a-fib) before surgery - You are already on long-term blood thinners or dual antiplatelet therapy - You have severe kidney or liver disease - You had a stroke in the past 14 days, or cardiac surgery within the past 35 days - You have a history of bleeding in the brain or a bleeding disorder - You are pregnant or breastfeeding - You are known to be allergic to heart monitoring devices Talk to your doctor to see if this trial is right for you.