Coagulopathy with transfusion requirements is frequent during cardiac surgery with
cardiopulmonary Bypass. Rotational thromboelastrometry (ROTEM®) is a viscoelastic whole blood
point of care test used to assess the patient's coagulation status.
The purpose of this study is to evaluate the feasibility of ROTEM® analysis in the presence
of very high heparin concentrations as seen during cardiopulmonary bypass.