Investigators in the Florence Randomized Elective Stenting in Acute Coronary Occlusions - FRESCO
Description:
Stenting vs. PTCA for death, reinfarction, or revacularization in acute MI.
Hypothesis:
To compare stenting of the primary infarct-related artery (IRA) with optimal primary angioplasty for patients with an acute myocardial infarction.
Study Design
Study Design:
Patients Screened: 223
Patients Enrolled: 150
Mean Follow Up: 6 months
Mean Patient Age: 62
Female: 29
Mean Ejection Fraction: 51%
Patient Populations:
Chest pain for > 30 min
ST elevation of at least 0.1 mV in two or more contiguous leads
Admission within 6 hours of symptom onset, or admission within 24 hours if there was evidence of continuing ischemia
Exclusions:
Previous administration of fibrinolytic therapy
Stenosis of IRA of < 70%
Inability to identify IRA
Primary Endpoints:
Composite death, reinfarction or repeat target vessel revascularization within 6 months.
Secondary Endpoints:
Angiographic evidence of restenosis or reocclusion at 6 months after randomization.
Drug/Procedures Used:
Intracoronary stents vs. balloon angioplasty.
Concomitant Medications:
IV heparin, aspirin, and ticlopidine.
Principal Findings:
Primary PTCA was attempted in 223 patients. 73 patients were not randomized due to unsuccessful primary PTCA or coronary anatomy. The remaining patients were randomized to stenting (n=75) or no further intervention (n=75).
One-month recurrent ischemia was 3% in the stent group, and 15% in the PTCA group (p=0.009). The restenosis or reocclusion rate was 3% in the stent group and 17% in the PTCA group (p=004).
At 6 months, the incidence of the primary end point was 9% in the stent group and 28% in the PTCA group (p=0.003); the incidence of restenosis or reocclusion was 17% in the stent group and 43% in the PTCA group (p=0.001).
Interpretation:
Primary stenting of the IRA, compared with optimal primary angioplasty, results in a lower rate of major adverse events related to recurrent ischemia and a lower rate of angiographically detected restenosis or reocclusion of the IRA.
References:
1. Journal of the American College of Cardiology 1998;31(6):1234-9. Final results
Clinical Topics: Cardiovascular Care Team, Invasive Cardiovascular Angiography and Intervention
Keywords: Myocardial Infarction, Chest Pain, Angioplasty, Balloon, Coronary, Stents
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