Systematic review/Meta-analysis
Second- versus first-generation drug-eluting stents for diabetic patients: a meta-analysis
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Submission date: 2013-06-15
Final revision date: 2013-08-08
Acceptance date: 2013-09-08
Online publication date: 2014-05-13
Publication date: 2014-04-30
Arch Med Sci 2014;10(2):213-221
Introduction: The issue of whether various drug-eluting stents (DES) provide similar benefit in diabetic patients with coronary artery disease remains unclear. The purpose of the study is to assess the clinical utility of the second-generation and first-generation DES in patients with diabetes mellitus by a meta-analysis.
Material and methods: A systematic literature search of PubMed, EMBASE, and Cochrane databases was conducted. We included randomized trials involving head-to-head comparison of clinical outcomes of second- versus first-generation DES in patients with a diagnosis of diabetes with at least 6-month follow-up data. Summary statistics were calculated using random-effects models.
Results: A total of 10 trials with 4503 patients were available for analysis. The pooled analyses showed that the second-generation everolimus-eluting stent (EES) significantly lowered all-cause mortality (risk ratio (RR) = 0.58, 95% CI: 0.37–0.90; p = 0.01) and the risk of stent thrombosis (RR = 0.46, 95% CI: 0.22–0.95; p = 0.03) compared with the first-generation sirolimus-eluting stents (SES) and the overall first-generation DES, respectively. Moreover, the EES showed a tendency toward reducing the incidence of recurrent myocardial infarction when compared with paclitaxel-eluting stents (PES) (RR = 0.58, p = 0.08). In contrast, the second-generation zotarolimus-eluting stents (ZES) were associated with increased rates of stent thrombosis and risk of target lesion revascularization in comparison with the SES (both p < 0.05) or the overall first-generation DES (both p < 0.05).
Conclusions: The second-generation EES are highly effective in reducing the risk of major cardiac events in diabetic patients with coronary artery disease.
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