Fig. 3

VA-ECMO weaning algorithm. CK-MB creatine kinase MB, CI cardiac index, CVP central venous pressure, ECMO extracorporeal membrane oxygenation, ETCO₂ end-tidal CO₂, e′ early diastolic peak myocardial velocities, LV left ventricle, LVAD left ventricular assist device, LVEF left ventricular ejection fraction, LVOT VTI left ventricular outflow tract velocity time integral, MAP mean arterial pressure, MPAP mean pulmonary arterial pressure, MFI microvascular flow index, PAPi pulmonary artery pulsatility index, PCWP pulmonary capillary wedge pressure, PH pulmonary hypertension, PP pulse pressure, PPV percent perfused vessels, PSVD perfused small vessel density, RA right atrial, RV right ventricle, RVEF right ventricular ejection fraction, SBP systolic blood pressure, SVD small vessel density, S′ velocity systolic peak myocardial velocities, TAPSE tricuspid annular plane systolic excursion, TDSa systolic tissue Doppler imaging septal mitral annulus, TPG transpulmonary gradient, VV veno-venous, V-A-V veno-arterio-venous, *Investigational markers