Fig. 4From: Comparison of anticoagulation strategies for veno-venous ECMO support in acute respiratory failureMean units of UFH administered per day (a); mean partial thromboplastin time (PTT) during ECMO (b) and mean activated clotting time (ACT) in the high-dose (HD) UFH group (c). ECMO extracorporeal membrane oxygenation, HD high dose heparin groups, LD low dose heparin group, PTT partial thromboplastin time, ACT activated clotting time, UFH unfractionated heparinBack to article page