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Open Access What is the Optimal Duration of Dual Antiplatelet Therapy After Stenting?

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The optimal duration of dual antiplatelet therapy (DAPT) of aspirin and a P2Y12 receptor blocker after stenting is still being debated. The current recommendations for DAPT duration are significantly focused on reducing stent thrombosis; a less frequent event with later than earlier generation drug eluting stents (DES). A persistent occurrence of late and very late stent thrombosis with first generation DES supported extended use of DAPT beyond one year. However, recent studies have demonstrated that extended duration DAPT is associated with increased bleeding; an independent predictor for poor outcomes, including long-term mortality. Second-generation DES are associated with less late and very late stent thrombosis. Some recent studies have supported a shorter duration of DAPT for second generation DES. However, these studies were inadequately powered to assess significant differences in stent thrombosis. Furthermore, extended duration DAPT has been associated with a reduced risk of thrombotic events in non-culprit vessels in addition to stent thrombosis in patients with acute coronary syndromes (ACS). The higher risk of bleeding associated with extended DAPT therapy provides a strong rationale for personalized DAPT based on patient risk factors (e.g. ACS vs. non-ACS), type of stents, and cost-benefit analyses.

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Keywords: acute coronary syndrome; bleeding; coronary artery disease; drug eluting stent; dural antiplatelet therapy; stent thrombosis

Document Type: Research Article

Publication date: May 1, 2016

More about this publication?
  • Cardiovascular Innovations and Applications (CVIA) publishes focused articles and original clinical research that explore novel developments in cardiovascular disease, effective control and rehabilitation in cardiovascular disease, and promote cardiovascular innovations and applications for the betterment of public health globally. The journal publishes basic research that has clinical applicability in order to promote timely communication of the latest insights relating to coronary artery disease, heart failure, hypertension, cardiac arrhythmia, prevention of cardiovascular disease with a heavy emphasis on risk factor modification. Cardiovascular Innovations and Applications is the official journal of the Great Wall International Congress of Cardiology (GW-ICC). It aims to continue the work of the GW-ICC by providing a global scientific communication platform for cardiologists that bridges East and West.

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