Quantra Point-of-Care Hemostasis Monitoring

The Investigators propose a randomized control trial to assess patients scheduled for aortic surgery or high-risk cardiac surgery requiring cardiopulmonary bypass. Patients will be randomized 1:1 to routine care or POC Quantra QPlus System. The total number of blood and blood component transfusions (including RBC, plasma, cryoprecipitate, and platelets) during and after cardiac surgery until 12 hours after ICU arrival will be analyzed between the groups.