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  • Title: Late stent thrombosis in brachytherapy: the role of long-term antiplatelet therapy.
    Author: Teirstein P, Reilly JP.
    Journal: J Invasive Cardiol; 2002 Mar; 14(3):109-14. PubMed ID: 11870263.
    Abstract:
    Advances in percutaneous coronary intervention (PCI) have emerged in the past decade. Stenting has improved upon the limitations of angioplasty, acute vessel closure and restenosis by providing mechanical vascular support, resulting in sustained clinical and angiographic benefit. This has led to greater utilization of the technique, although it is associated with a significant incidence of in-stent restenosis. Neointimal hyperplasia is the pathophysiologic process that leads to in-stent restenosis. Brachytherapy can be effective in reducing the occurrence of this process. Unfortunately, brachytherapy trials have identified the phenomenon of late stent thrombosis as a potentially serious complication of this procedure. Late stent thrombosis is thrombosis that occurs > 30 days after PCI. The risk of thrombosis is increased in patients receiving a new stent in addition to brachytherapy. It also appears to be increased when adjunctive antiplatelet therapy with ticlopidine or clopidogrel is discontinued early. Strategies to prevent late stent thrombosis include the prolonged use of combination antiplatelet therapy in addition to limited placement of new stents in patients treated with brachytherapy for in-stent restenosis.
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