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Clinical Outcomes in Low Risk Coronary Artery Disease Patients Treated with Different Limus-Based Drug-Eluting Stents - A Nationwide Retrospective Cohort Study Using Insurance Claims Database

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  • Chao-Lun Lai
  • Ching-Fen Wu
  • Raymond Nien-Chen Kuo
  • Yen-Yun Yang
  • Ming-Fong Chen
  • K Arnold Chan
  • Mei-Shu Lai

Abstract

The clinical outcomes of different limus-based drug-eluting stents (DES) in a real-world setting have not been well defined. The aim of this study was to investigate the clinical outcomes of three different limus-based DES, namely sirolimus-eluting stent (SES), Endeavor zotarolimus-eluting stent (E-ZES) and everolimus-eluting stent (EES), using a national insurance claims database. We identified all patients who received implantation of single SES, E-ZES or EES between January 1, 2007 and December 31, 2009 from the National Health Insurance claims database, Taiwan. Follow-up was through December 31, 2011 for all selected clinical outcomes. The primary end-point was all-cause mortality. Secondary end-points included acute coronary events, heart failure needing hospitalization, and cerebrovascular disease. Cox regression model adjusting for baseline characteristics was used to compare the relative risks of different outcomes among the three different limus-based DES. Totally, 6584 patients were evaluated (n=2142 for SES, n=3445 for E-ZES, and n=997 for EES). After adjusting for baseline characteristics, we found no statistically significant difference in the risk of all-cause mortality in three DES groups (adjusted hazard ratio [HR]: 1.14, 95% confidence interval [CI]: 0.94-1.38, p=0.20 in E-ZES group compared with SES group; adjusted HR: 0.77, 95% CI: 0.54-1.10, p=0.15 in EES group compared with SES group). Similarly, we found no difference in the three stent groups in risks of acute coronary events, heart failure needing hospitalization, and cerebrovascular disease. In conclusion, we observed no difference in all-cause mortality, acute coronary events, heart failure needing hospitalization, and cerebrovascular disease in patients treated with SES, E-ZES, and EES in a real-world population-based setting in Taiwan.

Suggested Citation

  • Chao-Lun Lai & Ching-Fen Wu & Raymond Nien-Chen Kuo & Yen-Yun Yang & Ming-Fong Chen & K Arnold Chan & Mei-Shu Lai, 2015. "Clinical Outcomes in Low Risk Coronary Artery Disease Patients Treated with Different Limus-Based Drug-Eluting Stents - A Nationwide Retrospective Cohort Study Using Insurance Claims Database," PLOS ONE, Public Library of Science, vol. 10(4), pages 1-14, April.
    • Handle: RePEc:plo:pone00:0122860
    DOI: 10.1371/journal.pone.0122860
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    References listed on IDEAS

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    1. Fu, Hwai-Hui & Tsai, Hsien-Tang & Lin, Ching-Wei & Wei, Duan, 2004. "Application of a single sampling plan for auditing medical-claim payments made by Taiwan National Health Insurance," Health Policy, Elsevier, vol. 70(2), pages 185-195, November.
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