Hemodynamic Monitoring, Positive Inotropic and Vasoactive Drugs During Cardiac Surgery (EMOA)

Describe the proportion of patients who underwent cardiac surgery in France and benefiting from a monitoring cardiac output, describe the use of positive inotropic and vasoactive agents for cardiac surgery patients operated (type of catecholamines, their duration), describe the fluid replacement and transfusions of first 24 hours, describe the incidence of postoperative complications in patients undergoing cardiac surgery.