Very, very late stent thrombosis triggered by in-stent neoatherosclerosis: optical coherence tomography findings

Escola Paulista de Medicina, Universidade Federal de São Paulo, BrazilHospital Israelita Albert Einstein, São Paulo, BrazilColumbia University Medical Center, New York, NY; Cardiovascular Research Foundation, New York, NY, USAHôpital du Sacré-Coeur de Montréal, Université de Montréal, Montréal, Quebec, CanadaEscola Paulista de Medicina, Universidade Federal de São Paulo, BrazilWeb of Scienc

Prediction of Coronary Risk by SYNTAX and Derived Scores Synergy Between Percutaneous Coronary Intervention With Taxus and Cardiac Surgery

The introduction of the SYNTAX (Synergy Between PCI With Taxus and Cardiac Surgery) score has prompted a renewed interest for angiographic risk stratification in patients undergoing percutaneous coronary intervention. Syntax score is based on qualitative and quantitative characterization of coronary artery disease by including 11 angiographic variables that take into consideration lesion location and characteristics. Thus far, this score has been shown to be an effective tool to risk-stratify patients with complex coronary artery disease undergoing percutaneous coronary intervention in the landmark SYNTAX trial, as well as in other clinical settings. This review provides an overview of its current applications, including its integration with other nonangiographic clinical scores, and explores future applications of the SYNTAX and derived scores. (C) 2013 by the American College of Cardiology FoundationAbbott VascularDoris Duke Charitable FoundationColumbia Univ, Med Ctr, New York, NY 10022 USACardiovasc Res Fdn, New York, NY USAUniv Bologna, Ist Cardiol, Bologna, ItalyUniversidade Federal de São Paulo, Hosp Israelita Albert Einstein, São Paulo, BrazilUniversidade Federal de São Paulo, Escola Paulista Med, São Paulo, BrazilUniv Montreal, Hop Sacre Coeur Montreal, Montreal, PQ, CanadaUniversidade Federal de São Paulo, Hosp Israelita Albert Einstein, São Paulo, BrazilUniversidade Federal de São Paulo, Escola Paulista Med, São Paulo, BrazilWeb of Scienc

Quantification and Impact of Untreated Coronary Artery Disease After Percutaneous Coronary Intervention the Residual SYNTAX (Synergy Between PCI With Taxus and Cardiac Surgery) Score

Objectives the purpose of this study was to quantify the extent and complexity of residual coronary stenoses following percutaneous coronary intervention (PCI) and to evaluate its impact on adverse ischemic outcomes.Background Incomplete revascularization (IR) after PCI is common, and most studies have suggested that IR is associated with a worse prognosis compared with complete revascularization (CR). However, formal quantification of the extent and complexity of residual atherosclerosis after PCI has not been performed.Methods the baseline Synergy Between PCI With Taxus and Cardiac Surgery (SYNTAX) score (bSS) from 2,686 angiograms from patients with moderate-and high-risk acute coronary syndrome (ACS) undergoing PCI enrolled in the prospective ACUITY (Acute Catheterization and Urgent Intervention Triage Strategy) trial was determined. the SS after PCI was also assessed, generating the residual SS (rSS). Patients with rSS >0 were defined as having IR and were stratified by rSS tertiles, and their outcomes were compared to the CR group.Results the bSS was 12.8 +/- 6.7, and after PCI the rSS was 5.6 +/- 2.2. Following PCI, 1,084 patients (40.4%) had rSS = 0 (CR), 523 (19.5%) had rSS >0 but 2 but 8. Age, insulin-treated diabetes, hypertension, smoking, elevated biomarkers or ST-segment deviation, and lower ejection fraction were more frequent in patients with IR compared with CR. the 30-day and 1-year rates of ischemic events were significantly higher in the IR group compared with the CR group, especially those with high rSS. By multivariable analysis, rSS was a strong independent predictor of all ischemic outcomes at 1 year, including all-cause mortality (hazard ratio: 1.05, 95% confidence interval: 1.02 to 1.09, p = 0.006).Conclusions the rSS is useful to quantify and risk-stratify the degree and complexity of residual stenosis after PCI. Specifically, rSS >8.0 after PCI in patients with moderate-and high-risk ACS is associated with a poor 30-day and 1-year prognosis. (Comparison of Angiomax Versus Heparin in Acute Coronary Syndromes; NCT00093158) (J Am Coll Cardiol 2012;59:2165-74) (C) 2012 by the American College of Cardiology Foundationsanofi-aventisMedicines CompanyAbbott VascularBristol-Myers SquibbAstraZenecaColumbia Univ, Med Ctr, Cardiovasc Res Fdn, New York, NY 10022 USAUniv Montreal, Hop Sacre Coeur Montreal, Montreal, PQ, CanadaUniv Bologna, Inst Cardiol, Bologna, ItalyUniversidade Federal de São Paulo, Hosp Israelita Albert Einstein, Sau Paulo, BrazilUniversidade Federal de São Paulo, Escola Paulista Med, Sau Paulo, BrazilMt Sinai Med Ctr, New York, NY 10029 USAErasmus Univ, Thoraxctr, NL-3000 DR Rotterdam, NetherlandsUniversidade Federal de São Paulo, Hosp Israelita Albert Einstein, Sau Paulo, BrazilUniversidade Federal de São Paulo, Escola Paulista Med, Sau Paulo, BrazilWeb of Scienc

Short- versus long-term dual antiplatelet therapy after drug-eluting stent implantation: An individual patient data pairwise and network meta-analysis

Background Randomized controlled trials comparing short- (≤6 months) with long-term (≥1 year) dual antiplatelet therapy (DAPT) after drug-eluting stent(s) (DES) placement have been insufficiently powered to detect significant differences in the risk of major adverse cardiac events (MACE). Objectives This study sought to compare clinical outcomes between short- (≤6 months) and long-term (1 year) DAPT and among 3 months, 6 months, and 1 year of DAPT post-DES placement by performing an individual patient data pairwise and network meta-analysis. Methods Randomized controlled trials comparing DAPT durations after DES placement were searched through the MEDLINE, EMBASE, and Cochrane databases and in international meeting proceedings. The primary study outcome was 1-year risk of MACE (cardiac death, myocardial infarction, or definite/probable stent thrombosis). Results Four trials including 8,180 randomized patients were identified. At 1-year follow-up, short-term DAPT was associated with similar rates of MACE (hazard ratio [HR]: 1.11; 95% confidence interval [CI]: 0.86 to 1.43; p = 0.44), but significantly lower rates of bleeding (HR: 0.66; 95% CI: 0.46 to 0.94; p = 0.03) versus prolonged DAPT. Comparable results were apparent in the landmark period between DAPT discontinuation and 1-year follow-up (for MACE: HR: 1.20; 95% CI: 0.77 to 1.89; p = 0.42) (for bleeding: HR: 0.44; 95% CI: 0.21 to 0.91; p = 0.03). There were no significant differences in 1-year rates of MACE among 3-month versus 1-year DAPT, 6-month versus 1-year DAPT, or 3-month versus 6-month DAPT. Conclusions Compared with prolonged DAPT, short-term DAPT is associated with similar rates of MACE but lower rates of bleeding after DES placement