A double-blind, randomized study on platelet aggregation in patients treated with a daily dose of 150 or 75 mg of clopidogrel for 30 daysNicolas von Beckerath
Deutches Herzzentrum, Technische Universitat Munchen, Munich, Germany
Eur Heart J 28:1814-9. 2007
..We sought to test whether an increase in the clopidogrel maintenance dose results in increased inhibition of platelet aggregation...
Cytochrome 2C19*17 allelic variant, platelet aggregation, bleeding events, and stent thrombosis in clopidogrel-treated patients with coronary stent placementDirk Sibbing
Deutsches Herzzentrum Munchen, Lazarettstrasse 36, 80636 München, Germany
Circulation 121:512-8. 2010
..The aim of this study was to assess the impact of CYP2C19*17 on ADP-induced platelet aggregation, the risk of bleeding, and stent thrombosis in clopidogrel-treated patients undergoing percutaneous coronary intervention...
Risk of drug-eluting stent thrombosis in patients receiving proton pump inhibitorsNikolaus Sarafoff
Deutsches Herzzentrum Munchen, Klinik für Herz und Kreislauferkrankungen Lazarettstr 3680636 Munich, Germany
Thromb Haemost 104:626-32. 2010
..The higher mortality is probably due to confounding as patients on PPIs had a higher risk profile at baseline...
Isolated and interactive impact of common CYP2C19 genetic variants on the antiplatelet effect of chronic clopidogrel therapyD Sibbing
Deutsches Herzzentrum München and 1 Medizinische Klinik, Klinikum rechts der Isar, Technische Universitat Munchen, Munich, Germany
J Thromb Haemost 8:1685-93. 2010
..Currently, the isolated and interactive impacts of both variants on the antiplatelet effects of chronic clopidogrel therapy are unknown...
Oral anticoagulation with coumarin derivatives and antiplatelet effects of clopidogrelDirk Sibbing
Deutsches Herzzentrum and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Lazarettstrasse, Munich, Germany
Eur Heart J 31:1205-11. 2010
..The aim of this study was to investigate the impact of phenprocoumon on the antiplatelet effects of clopidogrel in patients with coronary artery disease...
A double-blind, randomized study on prevention and existence of a rebound phenomenon of platelets after cessation of clopidogrel treatmentDirk Sibbing
Deutsches Herzzentrum München and 1 Medizinische Klinik, Klinikum rechts der Isar, Technische Universitat Munchen, Munich, Germany
J Am Coll Cardiol 55:558-65. 2010
..The goal of this study was to assess whether a platelet rebound exists and whether it can be attenuated by clopidogrel tapering...
Clopidogrel response status assessed with Multiplate point-of-care analysis and the incidence and timing of stent thrombosis over six months following coronary stentingDirk Sibbing
Deutsches Herzzentrum and 1 Medizinische Klinik rechts der Isar, Lazarettstrasse 36, 80636 München, Germany
Thromb Haemost 103:151-9. 2010
..In the majority of clopidogrel low responders suffering ST, the ischaemic event occurs early in the course after the procedure...
Antiplatelet effects of clopidogrel and bleeding in patients undergoing coronary stent placementD Sibbing
Deutsches Herzzentrum München and I Medizinische Klinik, Klinikum rechts der Isar, Technische Universitat Munchen, Munich, Germany
J Thromb Haemost 8:250-6. 2010
..In patients undergoing percutaneous coronary intervention (PCI), a link between bleeding and excess mortality has been demonstrated. A potential association of platelet response to clopidogrel and bleeding has not been well established yet...
Impact of proton pump inhibitors on the antiplatelet effects of clopidogrelDirk Sibbing
Deutsches Herzzentrum and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Munich, Germany
Thromb Haemost 101:714-9. 2009
..Specifically designed and randomized clinical studies are needed to define the impact of concomitant PPI treatment on adverse events after percutaneous coronary intervention...
Platelet reactivity after clopidogrel treatment assessed with point-of-care analysis and early drug-eluting stent thrombosisDirk Sibbing
Deutsches Herzzentrum and Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Munich, Germany
J Am Coll Cardiol 53:849-56. 2009
..The aim of this prospective trial was to assess whether platelet reactivity to clopidogrel assessed with multiple electrode platelet aggregometry (MEA) correlates with the risk of early drug-eluting stent thrombosis (ST)...
High platelet reactivity and clinical outcome - fact and fictionDirk Sibbing
Deutsches Herzzentrum München and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Lazarettstrasse 36, 80636 München, Germany
Thromb Haemost 106:191-202. 2011
..This review aims to summarise available facts and fiction in relation to platelet function testing and reactivity with a particular focus on P2Y12 receptor inhibition in patients undergoing coronary stent placement...
Role of platelet function testing in clinical practice: current concepts and future perspectivesDirk Sibbing
Deutsches Herzzentrum München and 1 Medizinische Klinik, Klinikum rechts der Isar, Technische Universitat Munchen, Germany
Curr Drug Targets 12:1836-47. 2011
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Patent foramen ovale with a riding vermicular thrombus causing paradoxical and massive pulmonary embolismDirk Sibbing
Department of Cardiology, , , Munich, Germany
Eur Heart J 27:2724. 2006
Assessment of ADP-induced platelet aggregation with light transmission aggregometry and multiple electrode platelet aggregometry before and after clopidogrel treatmentDirk Sibbing
Deutsches Herzzentrum München and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Munich, Germany
Thromb Haemost 99:121-6. 2008
..71; P < 0.0001). The results of MEA, a fast and standardized method to assess the platelet response to ADP prior to and after clopidogrel treatment, correlate well with LTA...
No association of paraoxonase-1 Q192R genotypes with platelet response to clopidogrel and risk of stent thrombosis after coronary stentingDirk Sibbing
Deutsches Herzzentrum München and 1 Medizinische Klinik, Klinikum rechts der Isar, Technische Universitat Munchen, Lazarettstrasse 36, Munich, Germany
Eur Heart J 32:1605-13. 2011
..The aim of this study was to assess the impact of the PON1 Q192R genotype in parallel to that of CYP2C19*2 on the antiplatelet effect of clopidogrel and the risk of ST in clopidogrel-treated patients...
Protective effect of the CYP2C19 *17 polymorphism with increased activation of clopidogrel on cardiovascular eventsKlaus A Tiroch
Deutsches Herzzentrum Munchen, Rechts der Isar, Technische Universitat, Germany
Am Heart J 160:506-12. 2010
..Reduced-function alleles have been associated with an increase in cardiovascular events...
Association between inflammatory biomarkers and platelet aggregation in patients under chronic clopidogrel treatmentIsabell Bernlochner
Deutsches Herzzentrum and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Munich, Germany
Thromb Haemost 104:1193-200. 2010
..Whether a direct relation between platelets and inflammation exists, as well as the clinical impact of our results, warrants further investigations...
Bivalirudin reduces platelet and monocyte activation after elective percutaneous coronary interventionGabriele Busch
Deutsches Herzzentrum, Lazarettstrasse 36, 80636 Munich, Germany
Thromb Haemost 101:340-4. 2009
..In conclusion, our data suggest that bivalirudin may reduce platelet and monocyte activation in patients undergoing elective PCI. Thereby, bivalirudin might reduce periinterventional thrombotic complications...
Platelet response to clopidogrel and restenosis in patients treated predominantly with drug-eluting stentsStefanie Schulz
Deutsches Herzzentrum, Technische Universitat, Munich, Germany
Am Heart J 160:355-61. 2010
..The aim of this study was to assess the impact of platelet response to clopidogrel on the risk of restenosis after drug-eluting stenting (DES)...
Assessment of platelet response to clopidogrel with multiple electrode aggregometry, the VerifyNow P2Y12 analyzer and platelet Vasodilator-Stimulated Phosphoprotein flow cytometryNicolas von Beckerath
Deutsches Herzzentrum, 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Munich, Germany
Blood Coagul Fibrinolysis 21:46-52. 2010
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Cytochrome P450 2C19 loss-of-function polymorphism and stent thrombosis following percutaneous coronary interventionDirk Sibbing
Department of Cardiology, Deutsches Herzzentrum and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Munich, Germany
Eur Heart J 30:916-22. 2009
..The aim of this study was to assess the impact of the CYP2C19 681G>A loss-of-function polymorphism on ST following PCI performed after pre-treatment with clopidogrel...
Lack of impact of calcium-channel blockers on the pharmacodynamic effect and the clinical efficacy of clopidogrel after drug-eluting stentingNikolaus Sarafoff
Deutsches Herzzentrum Munchen, Munich, Germany
Am Heart J 161:605-10. 2011
..The aim of this study was to assess the impact of CCB therapy on the pharmacodynamic effect and the clinical efficacy of clopidogrel after drug-eluting stent placement...
Impact of bivalirudin or unfractionated heparin on platelet aggregation in patients pretreated with 600 mg clopidogrel undergoing elective percutaneous coronary interventionDirk Sibbing
Deutsches Herzzentrum and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Munich, Germany
Eur Heart J 29:1504-9. 2008
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Stability of the high on-treatment platelet reactivity phenotype over time in clopidogrel-treated patientsJuliane Jaitner
Deutsches Herzzentrum München and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Munchen, Munich, Germany
Thromb Haemost 105:107-12. 2011
..In conclusion, the HPR phenotype is stable over time in the majority of clopidogrel-treated patients. Comparative assessment of phenotype stability across available platelet function assays warrants further investigation...
No association of ABCB1 C3435T genotype with clopidogrel response or risk of stent thrombosis in patients undergoing coronary stentingJuliane Jaitner
Deutsches Herzzentrum München and 1 Medizinische Klinik, Klinikum rechts der Isar, Technische Universitat Munchen, Munich, Germany
Circ Cardiovasc Interv 5:82-8, S1-2. 2012
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Impact of body mass index on platelet aggregation after administration of a high loading dose of 600 mg of clopidogrel before percutaneous coronary interventionDirk Sibbing
Deutsches Herzzentrum and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Munich, Germany
Am J Cardiol 100:203-5. 2007
..005). In conclusion, administration of a single high loading dose of clopidogrel 600 mg does not inhibit platelet aggregation in overweight patients to the same extent as in normal-weight patients...
Platelet function in clopidogrel-treated patients with acute coronary syndromeDirk Sibbing
Deutsches Herzzentrum and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Ismaninger Strasse 22, 81675 Munich, Germany
Blood Coagul Fibrinolysis 18:335-9. 2007
..0001). Patients with ACS continue to exhibit increased platelet activation after pretreatment with 600 mg clopidogrel. This finding supports the need for additional platelet function inhibition during PCI in patients with ACS...
The future of platelet function testing to guide therapy in clopidogrel low and enhanced respondersIsabell Bernlochner
Deutsches Herzzentrum Munchen, Lazarettstrasse 36, Munich, Germany
Expert Rev Cardiovasc Ther 9:999-1014. 2011
..This article reviews the impact of antiplatelet drug responsiveness on clinical outcomes with a focus on P2Y(12) receptor inhibition as well as on current and future concepts for personalized antiplatelet strategies...
Plasminogen activator inhibitor-1 4G/5G polymorphism and efficacy of reperfusion therapy in acute myocardial infarctionDirk Sibbing
Deutsches Herzzentrum and 1 Medizinische Klinik rechts der Isar, Technische Universitat Munchen, Munich, Germany
Blood Coagul Fibrinolysis 16:511-5. 2005
..The PAI-1 4G/5G polymorphism has no impact on the amount of myocardial salvage achieved by reperfusion with stenting or thrombolysis in patients with AMI...
A randomized clinical trial to evaluate the safety and efficacy of a percutaneous left ventricular assist device versus intra-aortic balloon pumping for treatment of cardiogenic shock caused by myocardial infarctionMelchior Seyfarth
Deutsches Herzzentrum Munchen, Technische Universitat, Munich, Germany
J Am Coll Cardiol 52:1584-8. 2008
..The aim of this study was to test whether the left ventricular assist device (LVAD) Impella LP2.5 (Abiomed Europe GmbH, Aachen, Germany) provides superior hemodynamic support compared with the intra-aortic balloon pump (IABP)...
Mutations in the mitochondrial thioredoxin reductase gene TXNRD2 cause dilated cardiomyopathyDirk Sibbing
Deutsches Herzzentrum Munchen, Munich, Germany
Eur Heart J 32:1121-33. 2011
..Cardiac-specific deletion of Txnrd2 in mice results in dilated cardiomyopathy (DCM). The aim of this study was to investigate whether TXNRD2 mutations explain a fraction of monogenic DCM cases...
Correlation of a new point-of-care test with conventional optical aggregometry for the assessment of clopidogrel responsivenessNicolas von Beckerath
Thromb Haemost 95:910-1. 2006