RT Book, Section A1 Gupta, Vedant A. A1 Moliterno, David J. A2 Samady, Habib A2 Fearon, William F. A2 Yeung, Alan C. A2 King III, Spencer B. SR Print(0) ID 1146596314 T1 Antithrombin Therapies T2 Interventional Cardiology, 2e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9780071820363 LK accesscardiology.mhmedical.com/content.aspx?aid=1146596314 RD 2023/03/27 AB Acute coronary artery occlusion is a dynamic process that involves three essential processes: compromise of vascular integrity, platelet activation and aggregation, and acceleration of the coagulation cascade with fibrin formation. Although the role of thrombin (factor IIa) is well documented in blood coagulation, fibrin formation, and thrombus stabilization, it is also central to interplay among these processes. Angiographic, intravascular ultrasound (IVUS), and pathologic studies during acute coronary syndromes (ACS) have helped delineate the pathophysiology of coronary artery occlusion: atherosclerotic plaque rupture leads to release of tissue factor (TF), which has broad impact to stimulate platelets and generate thrombin. TF activates factor VII, which activates the common pathway via the extrinsic pathway, and also activates factor IX, activating the intrinsic pathway (Fig. 15-1).1 Subsequent generation of factor Xa leads to thrombin activation.