Aims: The aim of the study was to assess the safety and efficacy of bivalirudin + glycoprotein (Gp) IIb/IIIa inhibitor as compared to unfractionated heparin (UFH) + Gp IIb/IIIa inhibitor in high risk patients undergoing elective percutaneous coronary intervention (PCI). The primary end point was time to sheath removal and ambulation where as peri-procedure myocardial damage, access site bleeding and major adverse cardiac events (MACE) rates were secondary end points.
Methods: One hundred and one high risk patients undergoing elective PCI were randomly assigned to either bivalirudin + GpIIb/IIIa inhibitor or UFH + Gp IIb/IIIa inhibitor. PCI was performed by standard technique and activated clotting time was monitored immediately on arrival to recovery area and every 60 min thereafter. Sheath were pulled out once ACT was below 150 seconds and patients were mobilized 6hrs after sheath were removed. Peri-procedure myocardial damage was assessed by serial Trop I levels.
Results: Patient assigned to bivalirudin + tirofiban has significantly reduced time to sheath removal and ambulation as compared to those who received UFH + tirofiban (p < 0.0001) although peak Act did not differ in the groups. Peak Trop I levels were significantly lower in bivalirudin + tirofiban group (p = 0.023) and peri-procedure Trop I elevation occurred in significantly lower number of patients treated with bivalirudin + tirofiban (p = 0.029).
Conclusions: The combination of bivalirudin + tirofiban was safe and effective as compared to UFH + tirofiban in high risk patients undergoing elective PCI.
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http://dx.doi.org/10.1016/j.ihj.2012.07.022 | DOI Listing |
J Clin Med
January 2023
Department of Anesthesiology, Lausanne University Hospital (CHUV), 1011 Lausanne, Switzerland.
Heparin-induced thrombocytopenia (HIT) is a major issue in cardiac surgery requiring cardiopulmonary bypass (CPB). HIT represents a severe adverse drug reaction after heparin administration. It consists of immune-mediated thrombocytopenia paradoxically leading to thrombotic events.
View Article and Find Full Text PDFRev Port Cardiol (Engl Ed)
April 2019
Cardiology Department, Hospital Garcia de Orta, Almada, Portugal; Centro Cardiovascular da Universidade de Lisboa, CCUL, Faculdade de Medicina, Universidade de Lisboa, Portugal.
This article reviews the major pharmacologic features of, and clinical evidence on, adjuvant medical therapy in patients with ST-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention. These drugs include oral antiplatelets (aspirin and P2Y inhibitors such as clopidogrel, prasugrel and ticagrelor), intravenous antiplatelet agents (the P2Y inhibitor cangrelor, GP IIb/IIIa inhibitors such as abciximab, eptifibatide and tirofiban), and intravenous anticoagulant agents (unfractionated heparin, low molecular weight heparin and bivalirudin).
View Article and Find Full Text PDFAm J Cardiol
June 2019
Department of Cardiology, Intermountain Heart Institute, Murray, Utah.
Glycoprotein IIb/IIIa inhibitors, used as a standard intravenous bolus followed by a prolonged infusion for 12 to 18 hours, reduces ischemic complications during percutaneous coronary interventions (PCI) but often at a cost of increased bleeding. Today, when dual oral antiplatelet therapy is routine, heparin use plus short-term (bolus alone or with a <6 hours infusion) glycoprotein IIb/IIIa inhibitors, or bivalirudin monotherapy, have been proposed as potentially superior alternatives. This observational study evaluated the safety and efficacy of heparin plus short-term tirofiban versus bivalirudin monotherapy during PCI.
View Article and Find Full Text PDFSemin Thromb Hemost
October 2018
Protein Science Laboratory, Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore.
Venomous and hematophagous animals use their venom or saliva for survival, to obtain food, and for self-defense. Venom and saliva from these animals are cocktails of bioactive molecules primarily composed of proteins and peptides. These molecules are called toxins because they cause unwanted consequences on prey.
View Article and Find Full Text PDFCurr Vasc Pharmacol
April 2019
Unit of Cardiovascular Sciences, Campus Bio-Medico, University of Rome, Rome, Italy.
Background: In the era of dual antiplatelet therapy of aspirin and clopidogrel and systematic stent implantation, Glycoprotein IIb/IIIa Inhibitors (GPI), including abciximab, eptifibatide and tirofiban, proved beneficial in improving early outcome of Percutaneous Coronary Intervention (PCI), especially in higher risk clinical and/or anatomical subsets. This was associated however, with an increased incidence of bleeding complications.
Objective: To review whether the established results of GPI in PCI are maintained in the contemporary era of more effective antiplatelet agents (i.
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