Bivalirudin in contemporary percutaneous coronary intervention for non-ST-segment elevation acute coronary syndromes: what is the current role of platelet glycoprotein IIb/IIIa receptor inhibitor agents?

Currently, the wide variety of antithrombotic agents as adjunctive pharmacological therapy for non-ST-segment elevation acute coronary syndromes (ACS) in the setting of contemporary percutaneous coronary intervention (PCI) available for clinical use has made choosing the optimal drug therapy a complex and difficult task. In the stent era, bivalirudin, a semisynthetic direct thrombin inhibitor, has recently been shown to provide similar efficacy with less bleeding compared with unfractionated heparin plus platelet glycoprotein IIb/IIIa inhibitors in ACS patients treated with PCI. Although there are some controversial results and limitations in the studies with bivalirudin, this drug certainly is a plausible option in the treatment of ACS. With current findings in contemporary PCI, there may be a steady increase in the utilization of bivalirudin. On the other hand, in the real world, there may be reinforcement in the sole use of unfractionated heparin confining glycoprotein IIb/IIIa inhibitors and other intravenous antithrombotics to bailout therapy for periprocedural PCI complications in ACS patients.