This study aims to understand the impact of time-of-the day on human myocardial tolerance to ischemia-reperfusion by exploring atrial myocardium biopsied during cardiac surgery. Patients scheduled for non-urgent cardiac surgery (coronary artery by-pas graft and/or aortic valve replacement) will be assigned to a morning or an afternoon cardiac surgery based on randomization. Myocardial biopsies will be explored in ex vivo conditions mimicking ischemia-reperfusion.
Age range
18 Years
Sex
ALL
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ischemia reperfusion injury in ex vivo conditions
Timeframe: the day of the myocardial biopsy