AIMS: We sought to determine whether a transradial (TR) approach compared with a transfemoral (TF) approach was associated with improved clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI) undergoing primarypercutaneous coronary intervention (PCI) in a post hoc analysis of the HORIZONS-AMI trial. There is a paucity of data comparing the TR approach with the TF approach in patients with STEMI treated with primary PCI and contemporary anticoagulant regimens. METHODS AND RESULTS: In HORIZONS-AMI, primary PCI for STEMI was performed in 3,340 patients, either by the TR (n=200) or TF approach (n=3,134). Endpoints included the 30-day and one-year rates of major adverse cardiovascular events (MACE: death, reinfarction, stroke or target vessel revascularisation), non CABG-related major bleeding, and net adverse clinical events (NACE: MACE or major bleeding). TR compared to TF access was associated with significantly lower 30-day rates of composite death or reinfarction (1.0% vs. 4.3%, OR 0.23, 95% CI [0.06,0.94], p=0.02), non CABG-related major bleeding (3.5% vs. 7.6%, OR 0.45, 95% CI [0.21,0.95], p=0.03), MACE (2.0% vs. 5.6%, OR 0.35, 95% CI [0.13,0.95], p=0.02), and NACE (5.0% vs. 11.6%,OR 0.42, 95% CI [0.22,0.78], p<0.01). At one year, the TR group still had significantly reduced rates of death or reinfarction (4.0% vs. 7.8%, OR 0.51, 95% CI [0.25,1.02], p=0.05), non CABG-related major bleeding (3.5% vs. 8.1%, OR 0.42, 95% CI [0.20,0.89], p=0.02), MACE (6.0% vs. 12.4%, OR 0.47, 95% CI [0.26,0.83], p<0.01) and NACE (8.5% vs. 17.8%, OR 0.45, 95% CI [0.28,0.74], p<0.001). By multivariable analysis, TR access was an independent predictor of freedom from MACE and NACE at 30 days and one year. CONCLUSIONS: In patients with STEMI undergoing primary PCI with contemporary anticoagulation regimens in the HORIZONS-AMI trial, a TR compared with a TF approach was associated with reduced major bleeding and improved event-free survival.
RCT Entities:
AIMS: We sought to determine whether a transradial (TR) approach compared with a transfemoral (TF) approach was associated with improved clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) in a post hoc analysis of the HORIZONS-AMI trial. There is a paucity of data comparing the TR approach with the TF approach in patients with STEMI treated with primary PCI and contemporary anticoagulant regimens. METHODS AND RESULTS: In HORIZONS-AMI, primary PCI for STEMI was performed in 3,340 patients, either by the TR (n=200) or TF approach (n=3,134). Endpoints included the 30-day and one-year rates of major adverse cardiovascular events (MACE: death, reinfarction, stroke or target vessel revascularisation), non CABG-related major bleeding, and net adverse clinical events (NACE: MACE or major bleeding). TR compared to TF access was associated with significantly lower 30-day rates of composite death or reinfarction (1.0% vs. 4.3%, OR 0.23, 95% CI [0.06,0.94], p=0.02), non CABG-related major bleeding (3.5% vs. 7.6%, OR 0.45, 95% CI [0.21,0.95], p=0.03), MACE (2.0% vs. 5.6%, OR 0.35, 95% CI [0.13,0.95], p=0.02), and NACE (5.0% vs. 11.6%,OR 0.42, 95% CI [0.22,0.78], p<0.01). At one year, the TR group still had significantly reduced rates of death or reinfarction (4.0% vs. 7.8%, OR 0.51, 95% CI [0.25,1.02], p=0.05), non CABG-related major bleeding (3.5% vs. 8.1%, OR 0.42, 95% CI [0.20,0.89], p=0.02), MACE (6.0% vs. 12.4%, OR 0.47, 95% CI [0.26,0.83], p<0.01) and NACE (8.5% vs. 17.8%, OR 0.45, 95% CI [0.28,0.74], p<0.001). By multivariable analysis, TR access was an independent predictor of freedom from MACE and NACE at 30 days and one year. CONCLUSIONS: In patients with STEMI undergoing primary PCI with contemporary anticoagulation regimens in the HORIZONS-AMI trial, a TR compared with a TF approach was associated with reduced major bleeding and improved event-free survival.
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