“…The heparin-free period varied between 4 hours and 2 days in 12 patients. 5,22,33,39,51,65,75,84 Re-start of anticoagulation was performed after damage control surgery, detection of clots in the circuit, or control of the bleeding site. 23,26,41,46,53,56,74,84,94,96 In seven patients, the heparin-free time was not specified 15,71,91 (Supplemental Figure 2, Supplemental Digital Content, http://links.lww.com/ASAIO/A515).…”