Any, acute and subacute stent thrombosis with bivalirudin versus unfractionated heparin (UFH) in predominantly ST segment elevation myocardial infarction (STEMI) studies; (A) any stent thrombosis, (B) acute stent thrombosis (<24 h), and (C) subacute stent t... Any, acute and subacute stent thrombosis with bivalirudin versus unfractionated heparin (UFH) in predominantly ST segment elevation myocardial infarction (STEMI) studies; (A) any stent thrombosis, (B) acute stent thrombosis (<24 h), and (C) subacute stent thrombosis (≥24 h to 30 days). Mohamed Farag et al. Open Heart 2015;2:e000258 ©2015 by British Cardiovascular Society