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  • Title: Disease-specific health status after stent-assisted percutaneous coronary intervention and coronary artery bypass surgery: one-year results from the Stent or Surgery trial.
    Author: Zhang Z, Mahoney EM, Stables RH, Booth J, Nugara F, Spertus JA, Weintraub WS.
    Journal: Circulation; 2003 Oct 07; 108(14):1694-700. PubMed ID: 12975252.
    Abstract:
    BACKGROUND: Functional status and quality of life are important outcomes in the evaluation of revascularization approaches for symptomatic coronary artery disease. Few data are available regarding the comparative improvement in disease-specific health status after CABG versus percutaneous coronary intervention (PCI) in the era of coronary stenting. METHODS AND RESULTS: Cardiac-specific health status was evaluated at baseline and at 6 and 12 months after intervention with the Seattle Angina Questionnaire (SAQ) in patients randomized to stent-assisted PCI (n=488) versus CABG (n=500) in the Stent or Surgery trial. Scores for physical limitation, angina frequency, and quality of life improved significantly for both treatment groups at 6 months (range of improvement from 13.6 to 34.7 points) and 12 months (14.3 to 38.2 points; all P<0.001). CABG patients had greater improvement than those assigned to PCI, although the magnitude of the difference decreased over time (difference at 6 months, 4.03 to 6.48 points; 12 months, 2.05 to 2.93 points). A component of this reduction is accounted for by PCI-arm patients who required repeat intervention. Differences between treatment groups were greatest for the 6-month angina frequency scores (difference=6.48 points; 95% CI 3.96 to 8.99). Overall, treatment satisfaction was high and did not differ significantly between groups. CONCLUSIONS: Both CABG and stent-assisted PCI dramatically improved cardiac-related health status in patients with multivessel disease at 6- and 12-month follow-up. During the first postprocedure year, patients' angina burden and physical limitations were alleviated to a greater extent with CABG.
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