Targets for systemic anticoagulation during veno-venous extracorporeal membrane oxygenation. Herein we report the usual therapeutic target for the most common tests for monitoring heparin-induced anticoagulation during veno-venous extracorporeal membrane oxygenation. As for the activated partial thromboplastin time (aPTT), the therapeutic range was reported in seconds by 85 (75.9%) participants and relative to control (as ratio) by 27 (24.1%) participants. Each line connects the lower and the upper limits of the therapeutic target declared by each respondent. For example, in the panel labelled “ACT (seconds),” the top line corresponds to a target of 250 to 350 s; the second line corresponds to a target of 250 s. ACT, activated clotting time.