CAD: coronary artery disease; CABG: coronary artery bypass grafting; CRT: cardiac resynchronization therapy; ESC: European Society of Cardiology; GDMT: guideline-directed medical therapy; HF: heart failure; HTx: heart transplantation; LVAD: left ventricular assist devices; LV: left ventricle/left ventricular; LVEF: left ventricular ejection fraction; MV: mitral valve; PCI: percutaneous coronary intervention; RV: right ventricle/right ventricular; SMR: secondary mitral regurgitation; TAVI: transcatheter aortic valve implantation; TEER: transcatheter edge-to-edge repair. aLVEF, predicted surgical risk, amount of myocardial viability, coronary anatomy/target vessels, type of concomitant procedure needed, TEER eligibility, likelihood of durable surgical repair, need of surgical mitral replacement, local expertise. bParticularly when concomitant tricuspid valve surgery is needed. cCOAPT criteria (Cardiovascular Outcomes Assessment of the MitraClip Percutaneous Therapy for Heart Failure Patients With Functional Mitral Regurgitation): see Supplementary Table 7.