The ECMOCYP (cytochromes P450 Activity) Study

The Geneva cocktail will be administered on 2 occasions at D3 after tMCS implantation (or start of the cardiogenic shock) and 14 days after tMCS explantation (or cardiogenic shock termination defined as: no need to use inortropic or vasopressive agent and absence of organ insufficiency) Primary endpoint: * Evaluate the impact of tMCS on the activity of CYPs as measured with metabolic ratios MRs (CYP activity at * D3 post tMCS implantation and 14 days after tMCS explantation vs the activity of CYPs in the control group. Secondary endpoints: * Evaluate the correlation between the activity of CYPs and IL-6 levels * Evaluate the correlation between the activity of CYPs and CRP levels * Evaluate the correlation between the activity of CYPs and TNF-α levels * Evaluate the correlation between the activity of CYPs and IL-1β levels * Evaluate the correlation between the activity of CYPs and IFN-γ levels * Compare CYP activity vs expected CYP activity based on patients' CYP genotyping * Compare CYP activity between VA-EMCO and micro-axial pump device (Impella® CP)