Valvular vs Non-Valvular Atrial Fibrillation - Classification Valvular: • Presence of moderate-to-severe mitral stenosis or artificial (mechanical) heart valve. • Anticoagulate with warfarin Non-valvular: • Absence of moderate-to-severe mitral stenosis or a mechanical heart valve. • Anticoagulate with NOAC or warfarin #Valvular #NonValvular #Atrial #Fibrillation #AFib #Classification #diagnosis #cardiology #definition