Assaoui et al reported criteria for being able to wean a patient from extracorporeal membrane oxygenation (ECMO) placed for refractory cardiogenic shock. The authors are from University Pierre et Marie Curie and Hopital Europeen Georges Pompidou in Paris.

Patient selection: VA-ECMO placed for refractory cardiogenic shock


Weaning test: flow reduction to less than 1.5 L/min (minimal ECMO flow)


Parameters associated with successful weaning:

(1) aortic time-velocity integral (TVI) >= 10 cm

(2) left ventricular ejection fraction > 20-25%

(3) peak systolic velocity at lateral mitral annulus (TDSa or S') >= 6 cm/s



• The area under the ROC curve is 0.93.

To read more or access our algorithms and calculators, please log in or register.