Management of the thrombotic lesion
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Associate Editors-In-Chief:
Goals of Treatment
There are several main goals in treating thrombotic lesions, including:
- Reperfusion of the epicardial artery and the downstream microvasculature
- Resolution/reduction of thrombus burden
- Avoid/minimize distal embolization
- Avoid/reduce thrombotic major adverse cardiac events (death, MI, recurrent ischemia, urgent target vessel revascularization (TVR))
Treatment Choices
Pharmacologic Therapy
- Antiplatelet therapy: Aspirin, platelet glycoprotein IIb/IIIa receptor (GP IIb/IIIa) antagonists (abciximab, eptifibatide, tirofiban), ADP receptor/P2Y12 inhibitors (plavix, ticagrelor, prasugrel)
- Antithrombin Therapy: Ufractionated heparin (UFH), low molecular weight heparin (LMWH). Fondaparinux is not recommended in primary PCI.
- Direct Thrombin Inhibitors: Hirudin, bivalirudin, argatroban
- Thrombolytic Therapy: Urokinase (UK), tissue plasminogen activator (tPA) for STEMI when other pharmacologic and mechanical treatments are not successful
Mechanical Therapy
- Aspiration Catheter: (Export, Pronto) is the choice prior to the other interventions listed below
- Percutaneous Coronary Intervention (PCI): Bare metal or drug-eluting stent particularly direct stenting without pre-dilation by conventional balloon angioplasty
- Distal Protection: (Percusurge guardwire, Triactive, Spider wire, Proxis) particularly in saphenous vein grafts
- Directional Atherectomy
- Transluminal Extraction Catheter (TEC)
- Rheolytic Thrombectomy (Possis Angiojet)