Effect of Peripheral VA-ECMO Flow Variations on the Pulmonary Arterial Occlusion Pressure (PAPO) in Patients With Refractory Cardiogenic Shock.

"The protocol unfolds in 5 steps as follows, each step lasting between 10 and 15 minutes to allow for the patient's hemodynamic adaptation. At each step, invasive and non-invasive hemodynamic evaluation is performed.~1. The 1st step is called 100% flow: it involves recording the patient's hemodynamic measurements at the baseline, i.e., at 100% of their ECMO-VA flow, previously set by the clinician entirely independently of the study.~2. The 2nd step is called 125% flow: the patient's ECMO-VA flow is increased to 125% of the initial flow.~3. The 3rd step is called 150% flow: the patient's ECMO-VA flow is increased to 150% of the initial flow.~4. The 4th step is called 175% flow: the patient's ECMO-VA flow is increased to 175% of the initial flow.~5. The 5th and final step is called 200% flow: the patient's ECMO-VA flow is increased to 200% of the initial flow."