Impact of Adrenoreceptor Expressions on Inflammatory Pattern in Refractory Cardiogenic Shock Under VA ECMO

"We will assess in all patients under ECLS for the treatment of a cardiogenic shock at day 0 (ECLS initiation) day 3 and day ECLS weaning :~Biological assessment:~1. Adrenoreceptors α1, α2, β1, β2, β3 on monocytes and lymphocytes T helper by flow cytometry~2. Lymphocytes Th1/Th2 pattern by flow cytometry~3. Cytokines on plasma : Interleukin (IL) 4, IL 12, TNF α, INF γ , IL1, IL6, IL10~Clinical assessment:~1. Hemodynamic parameters~2. Cumulated doses of catecholamines~3. Cardiac output variation measured by echocardiography during a standardized weaning procedure of ECLS at a constant mean arterial pressure (only on day 3 and Day ECLS weaning)"