EuroSCORE II

≥1 of the following in the same hospital admission as the operation: ventricular tachycardia or fibrillation or aborted sudden death; cardiac massage; ventilation before arrival to OR ; inotropes; IABP or VAD before arrival to OR; acute renal failure, defined as anuria or oliguria <10 mL/hr

Inability to perform any activity without angina or angina at rest

≥1 of the following: claudication; carotid occlusion or >50% stenosis ( NASCET criteria); amputation for arterial disease; previous or planned intervention on abdominal aorta, limb arteries, or carotids

≥1 previous major cardiac operation involving opening the pericardium

i.e., on antibiotics for endocarditis at time of surgery

≤90 days before operation