long-term clinical outcomes following elective stent implantation for unprotected left main coronary artery disease

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ID: 220330
2011
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Abstract
Percutaneous coronary intervention (PCI) has been increasingly adopted for unprotected left main coronary artery (LMCA) disease. The aim of this study was to evaluate the predictors of long-term clinical outcomes in patients after elective stent implantation for unprotected LMCA disease. Methods: A total of 122 patients with medically refractory angina who received coronary stenting for unprotected LMCA disease between August 1997 and December 2008 were included. Results: During the follow-up period of 45 ± 35 months (range: 1–137 months), the incidence of repeated PCI and/or coronary artery bypass grafting (CABG), and cardiovascular and total mortality were 28% (34 patients), 20% (24 patients), and 25% (31 patients), respectively. Multivariate analysis revealed that young age [p = 0.02; hazard ratio (HR): 2.19, 95% confidence interval (CI): 1.11–4.30] and bare-metal stent (BMS) use (p = 0.02; HR: 5.35, 95% CI: 1.27–22.57) were the independent predictors of repeated PCI and/or CABG. Only lower left ventricular ejection fraction (LVEF) could predict both cardiovascular mortality (p = 0.003; HR: 4.25, 95% CI: 1.63–11.08) and total mortality (p = 0.002; HR: 3.95, 95% CI: 1.65–9.45). Lower LVEF (p = 0.001; HR: 0.31, 95% CI: 0.16–0.61) and small stent size (p = 0.01; HR: 5.95, 95% CI: 1.43–24.80) could predict the composite endpoint, including target vessel revascularization and total mortality. Conclusion: We showed that young age and BMS implantation could predict repeated PCI and/or CABG after stent implantation for unprotected LMCA disease. Only lower LVEF could predict both cardiovascular and total mortality. Lower LVEF and small stent size but not BMS implantation could predict composite target vessel revascularization/total mortality.
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Authors ;Wei-Syun Hu;Shih-Huang Lee;Chiung-Zuan Chiu;Kou-Gi Shyu;Shen-Chang Lin;Huei-Fong Hung;Jer-Young Liou;Jun-Jack Cheng
Journal Bioorganic & medicinal chemistry letters
Year 2011
DOI
10.1016/S0929-6646(11)60004-1
URL
http://www.sciencedirect.com/science/article/pii/S0929664611600041
Keywords
coronary artery disease percutaneous coronary intervention

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