Definitionen nach den VARC-2-Kriterien

1 = schwerwiegende Blutungen (major bleedings): „Overt bleeding either associated with a drop in the hemoglobin level of at least 3.0 g/dL or requiring transfusion of 2 or 3 units of whole blood/RBC, or causing hospitalization or permanent injury, or requiring surgery AND Does not meet criteria of life-threatening or disabling bleeding“.  

2 = lebensbedrohliche Blutungen (Life-threatening or disabling bleedings): „Fatal bleeding OR Bleeding in a critical organ, such as intracranial, intraspinal, intraocular, or pericardial necessitating pericardiocentesis, or intramuscular with compartment syndrome OR Bleeding causing hypovolaemic shock or severe hypotension requiring vasopressors or surgery OR Overt source of bleeding with drop in haemoglobin ≥5 g/dL or whole blood or packed red blood cells (RBCs) transfusion ≥4 units“

Quelle: Updated standardized endpoint definitions for transcatheter aortic valve implantation: The Valve Academic Research Consortium-2 consensus document. Kappetein, AP et al. (2012). European Heart Journal 33, 2403–2418 (S. 2409).