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David Hildick-Smith Sussex Cardiac Centre. Background to ARTS. Meta-analysis of randomised trials comparing coronary angioplasty with bypass surgery. Pocock SJ, Henderson RA, Rickards AF, Hampton JR, King SB 3rd, Hamm CW, Puel J, Hueb W, Goy JJ, Rodriguez A. Lancet 1995.
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Background to ARTS Meta-analysis of randomised trials comparing coronary angioplasty with bypass surgery.Pocock SJ, Henderson RA, Rickards AF, Hampton JR, King SB 3rd, Hamm CW, Puel J, Hueb W, Goy JJ, Rodriguez A. Lancet 1995 • Previous POBA studies • Meta-analysis • 3300 patients • 1660 CABG, 1710 PTCA • Deaths 79 PCI vs 73 CABG • Revascularisation rates 33% PCI v 3% CABG
Background to ARTS • Rationale for ARTS • stent technology • CABG technology • economic evaluation
Methods • At least two lesions amenable to PCI or CABG, agreed by surgeon and cardiologist • Allowed: • total occlusions (<1 month) • bifurcations • thrombus • calcification • tortuosity • LVEF >30% • No previous revascularisations
Endpoints • Primary • freedom from death, stroke, MI, revascularisation • Secondary • angina status • medication use • cost effectiveness at 12 months
Results • 1200 patients at 67 centres • Matched demographics • Crossovers: • 6 to surgery • 19 to stenting
Results • 99% in PCI group had assigned Rx • 96% in CABG had assigned Rx • PCI 2.6±1.1 lesions stented • CABG 2.6±1.1 anastomoses made • Arterial grafts in 93% • 95% of these had LIMA to LAD
survival event-free survival
ARTS I Conclusions • No significant difference between groups for death • 17% difference in revascularisations favouring CABG • Lower costs ($3,000) favouring PCI
survival event-free survival
ARTS I – 5 years Serruys P. European Society of Cardiology Congress 2004; August 28-September 1, 2004; Munich, Germany.
ARTS II: Design Cypher stent N=607 ARTS II CABG N= 605 ARTS I R Crown stent N= 600
ARTS II • Aim: • non-inferiority of sirolimus-eluting stents compared with the surgical arm of ARTS I • Endpoints: • as for ARTS I
ARTS II: Stented Length • Average stented length: • ARTS II = 72.5mm • ARTS I = 47.6mm
Conclusions • “Early indications are that DES may be as good as CABG for multivessel disease revascularisation” (M.Leon 2004) • Wait for 1-year data