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Scientific article
Open access
English

Consensus and update on the definition of on-treatment platelet reactivity to adenosine diphosphate associated with ischemia and bleeding

Published inJournal of the American College of Cardiology, vol. 62, no. 24, p. 2261-2273
Publication date2013
Abstract

Dual antiplatelet therapy with aspirin and a P2Y12 receptor blocker is a key strategy to reduce platelet reactivity and to prevent thrombotic events in patients treated with percutaneous coronary intervention. In an earlier consensus document, we proposed cutoff values for high on-treatment platelet reactivity to adenosine diphosphate (ADP) associated with post-percutaneous coronary intervention ischemic events for various platelet function tests (PFTs). Updated American and European practice guidelines have issued a Class IIb recommendation for PFT to facilitate the choice of P2Y12 receptor inhibitor in selected high-risk patients treated with percutaneous coronary intervention, although routine testing is not recommended (Class III). Accumulated data from large studies underscore the importance of high on-treatment platelet reactivity to ADP as a prognostic risk factor. Recent prospective randomized trials of PFT did not demonstrate clinical benefit, thus questioning whether treatment modification based on the results of current PFT platforms can actually influence outcomes. However, there are major limitations associated with these randomized trials. In addition, recent data suggest that low on-treatment platelet reactivity to ADP is associated with a higher risk of bleeding. Therefore, a therapeutic window concept has been proposed for P2Y12 inhibitor therapy. In this updated consensus document, we review the available evidence addressing the relation of platelet reactivity to thrombotic and bleeding events. In addition, we propose cutoff values for high and low on-treatment platelet reactivity to ADP that might be used in future investigations of personalized antiplatelet therapy.

Keywords
  • Acute Coronary Syndrome/therapy
  • Adenosine Diphosphate/therapeutic use
  • Angioplasty, Balloon, Coronary
  • Blood Platelets/drug effects
  • Coronary Artery Disease/therapy
  • Coronary Thrombosis/etiology/prevention & control
  • Hemorrhage/etiology
  • Humans
  • Myocardial Ischemia/etiology
  • Platelet Aggregation Inhibitors/therapeutic use
  • Platelet Function Tests
  • Purinergic P2Y Receptor Antagonists/therapeutic use
  • Receptors, Purinergic P2Y12/drug effects
  • Risk Assessment
  • Risk Factors
  • Stents/adverse effects
Citation (ISO format)
TANTRY, Udaya S et al. Consensus and update on the definition of on-treatment platelet reactivity to adenosine diphosphate associated with ischemia and bleeding. In: Journal of the American College of Cardiology, 2013, vol. 62, n° 24, p. 2261–2273. doi: 10.1016/j.jacc.2013.07.101
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Article (Published version)
accessLevelPublic
Identifiers
ISSN of the journal0735-1097
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490downloads

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