Observational, prospective, monocentric study conducted in the cardiac surgery department about biological markers to predict the short-term outcome of heart surgery patients.

At present, there are no biological markers to predict the short-term outcome of heart surgery patients. Redox balance, determined by the interaction between oxidants and reducers in tissues, is an essential parameter in the regulation of cellular functions. Cardiac surgery with extracorporeal circulation (CEC) induces major disturbances in this balance. In preliminary work, it was observed that the redox potential (Eg) varied with the introduction of CEC, and a persistent imbalance appeared to correlate with post-operative complications. It is believed that Eg potential could be a new biomarker of the post-operative outcome of major surgery.

Inclusion Criteria:

Patients over 18 years of age Scheduled cardiac surgery patients undergoing bypass surgery with saphenous vein harvesting.

Patients able to understand the protocol; Patients able to express non-opposition to participating in the study Patients affiliated to a social security system or equivalent.

Exclusion Criteria:

Emergency surgery patients. Pregnant or breast-feeding women. Patients deprived of their freedom or under legal protective measures.

Patients undergoing scheduled cardiac surgery under CEC for coronary bypass surgery with saphenous vein harvesting at Toulouse University Hospital