Proposed antithrombotic algorithm after valvular heart procedures. ^aIncludes atrial fibrillation, previous thromboembolic events, left ventricular dysfunction and older generation mechanical AVR; ^bstands for replacement or repair. ASA: acetylsalicylic acid; AVR: aortic valve replacement; DAPT: dual antiplatelet therapy; INR: international normalized ratio; LMWH: low-molecular-weight heparin; MVR: mitral valve replacement; OAC: oral anticoagulant; SAPT: single antiplatelet therapy; TAVI: transcatheter aortic valve implantation; TVR: tricuspid valve replacement; UFH: unfractionated heparin; VKA: vitamin-K antagonists.