Clinical evaluation of the Resolute zotarolimus-eluting coronary stent system in the treatment of de novo lesions in native coronary arteries: the RESOLUTE US clinical trial.

Objectives: The RESOLUTE US (R-US) trial is a prospective, observational study designed to evaluate the clinical effectiveness of the Resolute zotarolimus-eluting stent (R-ZES) in a U.S. population.

A randomized comparison of the Endeavor zotarolimus-eluting stent versus the TAXUS paclitaxel-eluting stent in de novo native coronary lesions 12-month outcomes from the ENDEAVOR IV trial.

Objectives: The ENDEAVOR IV (Randomized Comparison of Zotarolimus-Eluting and Paclitaxel-Eluting Stents in Patients with Coronary Artery Disease) trial evaluated the safety and efficacy of the zotarolimus-eluting stent (ZES) compared with the paclitaxel-eluting stent (PES).

Background: First-generation drug-eluting stents have reduced angiographic and clinical restenosis, but long-term safety remains controversial. A second-generation drug-eluting stent, which delivers zotarolimus, a potent antiproliferative agent, via a biocompatible phosphorylcholine polymer on a cobalt alloy thin-strut stent has shown promising experimental and early clinical results.

Complementary effects of thienopyridine pretreatment and platelet glycoprotein IIb/IIIa integrin blockade with eptifibatide in coronary stent intervention; results from the ESPRIT trial.

Objectives: This analysis sought to investigate the complementary effect of thienopyridine pretreatment and platelet glycoprotein (GP) IIb/IIIa integrin blockade in coronary stent intervention.

Background: Definitive evidence supporting combined antiplatelet therapy consisting of thienopyridine pretreatment and GP IIb/IIIa receptor blockade in patients undergoing percutaneous coronary intervention (PCI) with stent implantation is limited.

Methods: We retrospectively analyzed clinical outcomes by thienopyridine use in the 2,040 patients randomized to eptifibatide or placebo who underwent PCI in the ESPRIT trial.

Frequency of stent thrombosis after acute coronary syndromes (from the SYMPHONY and 2nd SYMPHONY trials).

We studied stent thrombosis in 4,607 patients with acute coronary syndromes who received a coronary stent as part of routine care during 2 trials of aspirin versus sibrafiban for secondary prevention. In these patients, stent thrombosis occurred more often than in previous patients who underwent elective percutaneous coronary intervention. These patients and their outcomes may be more representative of patients with typical acute coronary syndromes undergoing stenting in clinical practice.

Relationship between heparin anticoagulation and clinical outcomes in coronary stent intervention: observations from the ESPRIT trial.

Objectives: We evaluated the relationship between the degree of heparin anticoagulation and clinical efficacy and bleeding in patients undergoing contemporary percutaneous coronary intervention (PCI) with stent implantation.

Background: Despite universal acceptance of heparin anticoagulation as a standard of care in PCI, considerable controversy still exists regarding the appropriate dosing of heparin.

Methods: The study population (n = 2,064) comprised all patients enrolled in the Enhanced Suppression of the Platelet IIb/IIIa Receptor with Integrilin Therapy (ESPRIT) trial.

Randomized COMparison of platelet inhibition with abciximab, tiRofiban and eptifibatide during percutaneous coronary intervention in acute coronary syndromes: the COMPARE trial. Comparison Of Measurements of Platelet aggregation with Aggrastat, Reopro, and Eptifibatide.

Background: The relative anti-aggregatory effects of currently prescribed platelet glycoprotein IIb/IIIa receptor antagonists during and after percutaneous coronary intervention for acute coronary syndromes have not been established.

Methods And Results: We randomized 70 acute coronary syndrome patients undergoing percutaneous coronary intervention to receive abciximab, eptifibatide, or tirofiban at doses used in the Evaluation of Platelet IIb/IIIa Inhibitor for STENTing (EPISTENT), Platelet glycoprotein IIb/IIIa in Unstable angina Receptor Suppression Using Integrilin Therapy (PURSUIT), and Platelet Receptor Inhibition in ischemic Syndrome Management in Patients Limited by Unstable Signs and symptoms (PRISM-PLUS)/Randomized Efficacy Study of Tirofiban for Outcomes and Restenosis (RESTORE) trials, respectively. Platelet aggregation (PA) in response to 20 micro mol/L of adenosine diphosphate was measured with turbidimetric aggregometry in both D-phenylalanyl-L-prolyl-L-arginine chloromethylketone and citrate-anticoagulated blood early (15 and 30 minutes) and late (4, 12, and 18 to 24 hours) after drug initiation.

Successful percutaneous coronary intervention with stent implantation in anomalous right coronary arteries arising from the left sinus of valsalva: a report of two cases.

Percutaneous coronary intervention (PCI) in an anomalous right coronary artery arising from the left sinus of valsalva can be technically challenging because of difficulty in selectively cannulating the vessel. We present two cases of successful stent implantation in an anomalous right coronary artery arising from the left sinus of valsalva. In both cases, we used an oversized 6 Fr Judkins left guiding catheter, which provided excellent angiographic visualization and guide support for stent delivery.