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  • Title: Acute and late outcomes of unprotected left main stenting in comparison with surgical revascularization.
    Author: Buszman PE, Kiesz SR, Bochenek A, Peszek-Przybyla E, Szkrobka I, Debinski M, Bialkowska B, Dudek D, Gruszka A, Zurakowski A, Milewski K, Wilczynski M, Rzeszutko L, Buszman P, Szymszal J, Martin JL, Tendera M.
    Journal: J Am Coll Cardiol; 2008 Feb 05; 51(5):538-45. PubMed ID: 18237682.
    Abstract:
    OBJECTIVES: The purpose of this study was to compare the early and late results of percutaneous and surgical revascularization of left main coronary artery stenosis. BACKGROUND: Unprotected left main coronary artery (ULMCA) stenting is being investigated as an alternative to bypass surgery. METHODS: We randomly assigned 105 patients with ULMCA stenosis to percutaneous coronary intervention (PCI; 52 patients) or coronary artery bypass grafting (CABG; 53 patients). The primary end point was the change in left ventricular ejection fraction (LVEF) 12 months after the intervention. Secondary end points included 30-day major adverse events (MAE), major adverse cardiac and cerebrovascular events (MACCE), length of hospitalization, target vessel failure (TVF), angina severity and exercise tolerance after 1 year, and total and MACCE-free survival. RESULTS: A significant increase in LVEF at the 12-month follow-up was noted only in the PCI group (3.3 +/- 6.7% after PCI vs. 0.5 +/- 0.8% after CABG; p = 0.047). Patients performed equally well on stress tests, and angina status improved similarly in the 2 groups. PCI was associated with a lower 30-day risk of MAE (p < 0.006) and MACCE (p = 0.03) and shorter hospitalizations (p = 0.0007). Total and MACCE-free 1-year survival was comparable. Left main TVF was similar in the 2 groups. During the 28.0 +/- 9.9-month follow-up, there were 3 deaths in the PCI group and 7 deaths in the CABG group (p = 0.08). CONCLUSIONS: Patients with ULMCA disease treated with PCI had favorable early outcomes in comparison with the CABG group. At 1 year, LVEF had improved significantly only in the PCI group. After more than 2 years, MACCE-free survival was similar in both groups with a trend toward improved survival after PCI.
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