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Short-term dual antiplatelet therapy (DAPT) followed by P2Y12 monotherapy versus traditional DAPT in patients undergoing percutaneous coronary intervention: meta-analysis and viewpoint

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Abstract

The optimal duration dual antiplatelet therapy (DAPT) after percutaneous coronary intervention (PCI) is subject to debate. A short-duration DAPT (one month to three months) followed by P2Y12 monotherapy instead of standard 6 to 12 months DAPT followed by aspirin monotherapy after PCI has been suggested. We meta-analyzed studies comparing short-term (≤ 3 months) DAPT followed by P2Y12 monotherapy versus standard DAPT in patients after PCI. In total, 2304 studies were screened at title and abstract level. The primary endpoint was major bleeding. Secondary endpoints included myocardial infarction, stent thrombosis, stroke, and all-cause mortality. Study level data were analyzed. Heterogeneity was assessed using the I2 statistic. Risk rates (RR) were calculated using a random-effects model (DerSimonian and Laird) for clinical outcomes for each individual study and consecutive pooling. In total, 21970 patients from three studies were analyzed. Between P2Y12 inhibitor monotherapy versus DAPT, there were similar rates of major bleeding (RR 0.67 95%CI 0.34–1.32; p = 0.25; I2 75%), mortality (RR 0.92 95%CI 0.78–1.09; p = 0.33; I2 0%) and stroke (RR 0.97 95%CI 0.52 − 0.18; p = 0.92; I2 57%). Endpoints assessing thrombotic events showed no statistically significant difference including myocardial infarction (RR 0.99 95%CI 0.85–1.15; p = 0.86; I2 0%) and stent thrombosis (RR 1.03 95%CI 0.74–1.44; p = 0.87; I2 0%). The experimental treatment with P2Y12 monotherapy after very short-term DAPT was not superior to standard DAPT. Our meta-analysis adds insight that DAPT might be safely shortened in selected patient strategies. However, DAPT remains the gold standard for antithrombotic treatment after PCI.

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Authors and Affiliations

  1. Clinic of Internal Medicine II, Department of Cardiology, Paracelsus Medical University, Salzburg, Austria

    Bernhard Wernly & Richard Rezar

  2. Inova Center for Thrombosis Research and Translational Medicine, Falls Church, VA, USA

    Paul Gurbel

  3. Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University of Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany

    Christian Jung

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  1. Bernhard Wernly
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  2. Richard Rezar
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Correspondence to Christian Jung.

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Wernly, B., Rezar, R., Gurbel, P. et al. Short-term dual antiplatelet therapy (DAPT) followed by P2Y12 monotherapy versus traditional DAPT in patients undergoing percutaneous coronary intervention: meta-analysis and viewpoint. J Thromb Thrombolysis 49, 173–176 (2020). https://doi.org/10.1007/s11239-019-01985-9

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  • DOI: https://doi.org/10.1007/s11239-019-01985-9

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