JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
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Dialysis Patients with Implanted Drug-Eluting Stents Have Lower Major Cardiac Events and Mortality than Those with Implanted Bare-Metal Stents: A Taiwanese Nationwide Cohort Study.

OBJECTIVE: To investigate the efficacy and long-term clinical benefits of DES for dialysis patients.

BACKGROUND: It is unclear whether percutaneous coronary intervention (PCI) with drug-eluting stent (DES) implantation is associated with lower rates of major adverse cardiovascular events (MACE) or mortality compared to bare-metal stents (BMS).

METHODS: From a nationwide cohort selected from Taiwan's National Health Insurance Research Database, we enrolled 2,835 dialysis patients who were hospitalized for PCI treatment with stent implantation from Dec 1, 2006. Follow-up was from the date of index hospitalization for PCI until the first MACE, date of death, or December 31, 2011, whichever came first.

RESULTS: A total of 738 patients (26.0%) had DES implanted, and 2,097 (74%) had BMS implanted. The medium time to the first MACE was 0.53 years (interquartile range: 0.89 years; range: 0-4.62 years). At 1-year follow-up, patients treated with BMS had significantly, non-fatal myocardial infarction (MI), all-cause mortality, and composite MACE compared to those treated with DES. The overall repeat revascularization with coronary artery bypass graft (CABG), non-fatal MI, all-cause mortality, and composite MACE were significantly lower in patients treated with DES than those treated with BMS. Multivariate cox regression analysis showed that older age, history of diabetes, history of heart failure, history of stroke, and DES vs. BMS were independent significant predictors of MACE.

CONCLUSIONS: DES implantation conferred survival benefits in dialysis patients compared with BMS implantation.

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