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Switching from high-dose clopidogrel to prasugrel in ACS patients undergoing PCI: a single-center experience

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Abstract

Prasugrel has been shown to be superior to clopidogrel in the setting of ACS patients undergoing coronary angioplasty. However, few data have been reported so far on those patients who switch from clopidogrel to prasugrel after coronary angioplasty. Aim of the current study was to evaluate the safety of prasugrel loading dose administration in ACS patients undergoing PCI and preatreated with high-dose clopidogrel. From May 2010 to December 2011 150 ACS patients undergoing coronary angioplasty and pretreated with high-dose clopidogrel, were switched to prasugrel loading dose soon after the procedure. They were matched (ratio 1:2) according to sex and age with a group of 300 ACS patients undergoing angioplasty and treated with high-dose clopidogrel only from May 2010 to December 2011. All demographic clinical and angiographic were collected. Primary endpoint was the rate of major bleeding complications (according to ACUITY trial definition) at 30-day follow-up. Secondary endpoints were: TIMI major and minor bleeding, definite stent thrombosis, major adverse cardiac events (MACE) and Net adverse cardiac events (NACE) at 30-day follow-up. The two groups of patients showed similar baseline demographic, and clinical characteristics. Most of the patients had unstable angina or non-ST segment elevation myocardial infarction. Almost (about 95 %) all patients underwent radial approach. No difference was observed in major bleeding complications according to both ACUITY (2.0 vs 2.0 %) and TIMI Major (0.7 vs 1.3 %) definition. No difference between the two groups was observed in terms of in-stent thrombosis, MACE and NACE at 30-day follow-up. Our observational study showed that switching to prasugrel with loading dose soon after angioplasty among ACS patients who were pretreated with clopidogrel seems to be well tolerated without overt evidence of heightened major bleeding. Future large randomized trials are certainly needed to confirm these findings.

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Authors and Affiliations

  1. Division of Cardiology, Ospedale “Maggiore della Carità”, Eastern Piedmont University, C.so Mazzini, 18, 28100, Novara, Italy

    Giuseppe De Luca, Monica Verdoia, Alon Schaffer & Paolo Marino

  2. Department of Cardiology, UMC St Radboud, Nijmegen, The Netherlands

    Harry Suryapranata

  3. Division of Cardiology, Careggi Hospital, Florence, Italy

    Guido Parodi & David Antoniucci

Authors
  1. Giuseppe De Luca
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  2. Monica Verdoia
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  3. Alon Schaffer
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  4. Harry Suryapranata
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  5. Guido Parodi
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  6. David Antoniucci
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  7. Paolo Marino
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Correspondence to Giuseppe De Luca.

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De Luca, G., Verdoia, M., Schaffer, A. et al. Switching from high-dose clopidogrel to prasugrel in ACS patients undergoing PCI: a single-center experience. J Thromb Thrombolysis 38, 388–394 (2014). https://doi.org/10.1007/s11239-013-1039-0

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  • DOI: https://doi.org/10.1007/s11239-013-1039-0

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