AFIB may cause cognitive decline via multiple mechanisms: Stroke Multiinfarct dementia due to microinfarcts Microbleeds as a result of anticoagulants Cerebral hypoperfusion – decreased blood flow to the brain Decline in brain volume Beta blockers ??may contribute Catheter ablation for AFIB contributes to micro infarcts (ACE – asymptomatic cerebral emboli) AFIB may be a marker…