CLINICAL RESEARCH: INTERVENTIONAL CARDIOLOGY
Randomized Trial of Sirolimus-Eluting Stent Versus Bare-Metal Stent in Acute Myocardial Infarction (SESAMI)
Maurizio Menichelli, MD*,*,
Antonio Parma, MD*,
Edoardo Pucci, MD*,
Rosario Fiorilli, MD*,
Francesco De Felice, MD*,
Marco Nazzaro, MD*,
Alessia Giulivi, MD*,
Domenico Alborino, MD*,
Arianna Azzellino, PhD and
Roberto Violini, MD*
* Division of Interventional Cardiology, San Camillo Hospital, Rome, Italy
Politecnico Milano, Milan, Italy
Manuscript received October 31, 2006;
revised manuscript received January 11, 2007,
accepted January 16, 2007.
* Reprint requests and correspondence: Dr. Maurizio Menichelli, Department of Cardiology, San Camillo Hospital, Circ. Gianicolense 187, 00100 Rome, Italy. (Email: menichelli747{at}yahoo.com).
Objectives: To confirm whether sirolimus-eluting stents (SES) safely reduce the incidence of restenosis in patients with ST-segment elevation acute myocardial infarction compared with bare-metal stents (BMS).
Background: In the setting of primary angioplasty, stent restenosis occurs in up to 27% of patients. The introduction of drug-eluting stents has drastically reduced the incidence of restenosis in clinically stable patients.
Methods: We conducted a randomized trial of 320 patients with acute ST-segment elevation myocardial infarction assigned to receive SES or BMS. The primary end point was binary restenosis at 1-year angiographic follow-up.
Results: At 1 year, the incidence of binary restenosis was lower in the SES group than in the BMS group (9.3% vs. 21.3%, respectively; p = 0.032), as were the rates of target lesion revascularization (4.3% vs. 11.2%; p = 0.02), target vessel revascularization (5% vs. 13.1; p = 0.015), major adverse cardiac events (6.8% vs. 16.8%; p = 0.005), and target vessel failure (8.7% vs. 18.7%; p = 0.007). The incidence of angiographically documented stent thrombosis was 1.2% (n = 2) in the SES group and 0.6% (n = 1) in the BMS group.
Conclusions: In patients with acute myocardial infarction, SES are superior to BMS, reducing the incidence of binary restenosis by 56%, target lesion revascularization by 61%, target vessel revascularization by 62%, adverse cardiac events by 59%, and target vessel failure by 53% at 1 year. (Sirolimus Eluting Stenting in Acute Myocardial Infarction; http://www.clinicaltrials.gov/ct/show/NCT00288210; NCT00288210
[ClinicalTrials.gov]
)
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Abbreviations and Acronyms
| | BMS = bare-metal stents | | MACE = major adverse cardiovascular events | | MI = myocardial infarction | | PCI = percutaneous coronary intervention | | SES = sirolimus-eluting stents | | TIMI = Thrombolysis In Myocardial Infarction | | TLR = target lesion revascularization | | TVF = target vessel failure | | TVR = target vessel revascularization |
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