SIROLIMUS-ELUTING STENT IMPLANTATION IN DIABETIC PATIENTS WITH MULTIVESSEL CORONARY ARTERY DISEASE

Restenosis rate is lower after sirolimus-eluting stent (SES) implantation than after bare metal stent (BS) implantation. We evaluated the impact of SES implantation on immediate and 12-month outcome in diabetic patients with multivessel coronary artery disease (MVD). METHODS: From April 2002 to September 2003, 100 consecutive diabetic patients with MVD without previous myocardial revascularization underwent successful elective percutaneous coronary intervention (PCI) with SES on native coronary arteries at our institutions. A group (n = 122) of consecutive diabetic patients with MVD treated with BS implantation (BS group) for de novo lesions was selected from our database and matched with the SES group. Major adverse cardiac events (MACEs) during hospital stay and at follow-up included nonfatal myocardial infarction, death, bypass surgery, and re-PCI. RESULTS: At 12 +/- 4 months, MACEs occurred in 25% of patients in the SES group and in 44% of those in the BS group (P = .003, OR .72, 95% CI 0.57-0.91). Need for repeat intervention (re-PCI or bypass surgery) occurred in 17% of patients in the SES group and in 41% of those in the BS group (P < .001, OR .67, 95% CI 0.52-0.86). No significant difference in the rate of death and myocardial infarction was observed. In the SES group, the independent predictors of MACEs at follow-up were premature clopidogrel discontinuation (hazard ratio 20.62, 95% CI 1.60-264.97, P = .020) and chronic renal insufficiency (hazard ratio 4.73, 95% CI 1.99-11.25, P = .0004). CONCLUSIONS: As compared with BS implantation, SES implantation favorably influences outcome in diabetic patients with MVD, mainly by reducing the need for new revascularization

Treatment of multivessel coronary artery disease with sirolimus-eluting stent implantation: Immediate and mid-term results

AbstractObjectivesThis study evaluated clinical outcome after multivessel stenting with sirolimus-eluting stents (SES) in unselected lesions.BackgroundSafety and effectiveness of multivessel SES implantation is currently unknown.MethodsMajor adverse cardiac events (MACE) (death, myocardial infarction [MI], and repeat revascularization) were analyzed at 30 days and at 6 months after multivessel SES implantation.ResultsIn 155 consecutive patients, 573 SES were implanted in 3.3 ± 1.3 lesions per patient. At 30 days, the cumulative MACE rate was 10.3%: 7.1% patients developed a non–Q-wave MI, 1.9% developed a Q-wave MI, 0.6% died for non-cardiac reasons, and 0.6% had a repeat revascularization. Clinical follow-up was obtained in all 112 eligible patients treated for 359 lesions at a mean time of 6.5 ± 2.2 months. The cumulative MACE rate was 22.3%: 3 (2.7%) deaths (1 for cardiac reasons), 4 (3.6%) MIs, target lesion revascularization (TLR) in 16 (14.3%) patients with 24 (6.7%) lesions. Target vessel revascularization was required in 18 (16.1%) patients due to TLR of lesions treated with SES or to disease progression (1.8% of patients). Cox regression analysis revealed total stent length per patient as the most powerful independent predictor of MACE. Overall stent thrombosis occurred in three (1.9%) patients.ConclusionsMultivessel SES implantation can be safely performed on patients with complex coronary artery disease. The need for revascularization increases because of the cumulative effect of TLR on patients with multiple lesions

Clinical and angiographic outcome after sirolimus-eluting stent implantation in aorto-ostial lesions

OBJECTIVES This observational study evaluated the clinical and angiographic outcomes of patients with aorto-ostial coronary artery disease treated with sirolimus-eluting stents (SESs) or with bare metal stents (BMSs).BACKGROUND The safety and effectiveness of SESs for the treatment of aorto-ostial lesions have not been demonstrated.METHODS We identified 82 consecutive patients who underwent percutaneous coronary interventions in 82 aorto-ostial lesions using the SES (32 patients) or BMS (50 patients) and compared the two groups of patients. The incidence of major adverse cardiac events (MACE), including death or Q-wave myocardial infarction (MI), target lesion revascularization (TLR), and target vessel revascularization (TVR), were recorded in-hospital and at a 10-month follow-up.RESULTS All stents were implanted successfully. There were no statistically significant differences regarding major in-hospital complications between the two groups. At 10-month follow-up, two (6.3%) patients in the SES group and 14 (28%) patients in the BMS group underwent TLR (p = 0.01); MACE were less frequent in the SES group compared to the BMS group (19% vs. 44%, p = 0.02). Angiographic follow-up showed lower binary restenosis rates (11% vs. 51%, p = 0.001) and smaller late loss (0.21 +/- 0.31 mm vs. 2.06 +/- 1.37 mm, p < 0.0001) in the SES group.CONCLUSIONS The main finding of our study is that, compared to the BMS, implantation of the SES in aorto-ostial lesions appears safe and effective, with no increase in major in-hospital complications and a significant improvement in restenosis and late event rates at 10-month follow-up. (C) 2004 by the American College of Cardiology Foundation

Validation of predictors of intraprocedural stent thrombosis in the drug-eluting stent era

Although predictors of acute intraprocedural stent thrombosis (IPST) in the drug-eluting stent era have been proposed, external validation is lacking. We thus analyzed the occurrence of IPST in the RECIPE study and found that, among 1,320 patients who underwent drug-eluting stent implantation, IPST occurred in 6 (0.5%), with in-hospital major adverse events in 4 (67%). IPST was predicted by number and total length of implanted stents, baseline minimal lumen diameter, and, in a pooled analysis that incorporated values from the present study and a previous study, use of elective glycoprotein IIb/IIIa inhibitors. Such results may provide useful information to guide prevention of this complication. (c) 2005 by Excerpta Medica Inc

Validation of predictors of intraprocedural stent thrombosis in the drug-eluting stent era

Although predictors of acute intraprocedural stent thrombosis (IPST) in the drug-eluting stent era have been proposed, external validation is lacking. We thus analyzed the occurrence of IPST in the RECIPE study and found that, among 1,320 patients who underwent drug-eluting stent implantation, IPST occurred in 6 (0.5%), with in-hospital major adverse events in 4 (67%). IPST was predicted by number and total length of implanted stents, baseline minimal lumen diameter, and, in a pooled analysis that incorporated values from the present study and a previous study, use of elective glycoprotein IIb/IIIa inhibitors. Such results may provide useful information to guide prevention of this complication. (c) 2005 by Excerpta Medica Inc