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In-Hospital and Long-Term Results of Unprotected Main Stenting Versus Coronary Artery Bypass Grafting-A Single Center Experience in Taiwan

並列摘要


Background: The status of percutancous coronary intervention (PCI) for the treatment of left main coronary artery (LMCA) disease remains undetermined, and relatively few data On Taiwanese population has been published. Method: Between March. 2003 and October, 2008. 121 patients with de-novo significant LMCA disease were included into this study. Eighty-seven patients received coronary artery bypass surgery (CABG) for LMCA disease, and 34 patients received PCI for LMCA disease. Significant LMCA disease was defined as at least>50% stenosis of the left main coronary artery. The differences of clinical outcomes between the two treatment strategies were compared with respect to the in-hospital major adverse events rate and long-term major adverse cardiovascular and cerebrovascular events (MACCE) rate. Results: There were no significant differences in terms of baseline characteristics between the two groups. The overall all-cause mortality with MACCE was 32.2% in the CABG group, and 35.3% in the PCI group (p=0.74). The overall mortality throughout the study period was 17.2% in the CABG group, and 5.9% in the PCI group (p=0.09). The CABG group had significantly higher in-hospital major adverse event rates (27.6%) than the PCI group (8.8%) (p=0.02) after adjustment of potential covariates. Long-term cumulative MACCE rates were 15% in the CABG group, and 32.4% in the PCI group. respectively (p=0.02). The lower MACCE rate in the CABG group was mainly due to lower revascularization rate in the CABG group than in the PCI group (8.8% vs. 29.4%; p <0.01). Conclusion: The CABG group conferred significantly higher in-hospital major adverse event rate hut significantly lower long-term MACCE rate in patients with significant LMCA disease. The CABG group displayed numerically higher incidence of all-cause mortality throughout the study period. PCI could he considered an alternative option for patients with unprotected LMCA disease.

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