• Medicine · Mar 2020

    Meta Analysis

    Mid-term outcomes of bioresorbable vascular scaffolds vs second-generation drug-eluting stents in patients with acute coronary syndromes: A systematic review and meta-analysis.

    • Junsong Ke, Hongyu Zhang, Jun Huang, Ping Lv, and Jumei Yan.
    • Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang.
    • Medicine (Baltimore). 2020 Mar 1; 99 (10): e19458.

    BackgroundEverolimus-eluting bioresorbable vascular scaffolds (BVS), which have the characteristics of scaffold absorption and vascular function recovery, are the latest innovation in the treatment of coronary artery disease. This new concept has become a hot topic in the field of interventional cardiology. Data regarding mid-term clinical outcomes of BVS in acute coronary syndromes are currently scarce. The aim of this systematic review and meta-analysis is to compare mid-term outcome data for BVS and second-generation drug-eluting stents (DES) in the treatment of acute coronary syndromes.MethodsWe searched PubMed, Embase, the Cochrane Library, Web of Science, and relevant web sites for studies with a follow-up of ≥ 1 years that studied percutaneous coronary interventions with BVS vs second-generation DES in acute coronary syndromes. A meta-analysis was performed with the software RevMan following the standards of the Cochrane Handbook for Systematic Reviews of Interventions 5.1.0.ResultsFive studies, 2 randomized controlled trials, and 3 observational studies, with a total of 1758 patients (BVS n = 917; DES n = 841) and a median follow-up duration of 24 months, were included. BVS, when compared with DES, resulted in higher rates of target lesion revascularization (TLR) (OR, 2.20; 95% CI, 1.12-3.64; P = .02) and stent/scaffold thrombosis (ST/ScT) (OR = 2.35, 95% CI: 1.13-4.89, P = .02). When TLR due to device thrombosis were excluded, the difference in risk estimates between the 2 groups was no longer significant (OR: 1.67, 95% CI: 0.73-3.82, P = .22). The risk for all-cause death (OR = 1.32 95% CI: 0.61-2.88, P = .48), cardiac death (OR = 1.29, 95% CI: 0.58-2.86 P = .52), target vessel myocardial infarction (OR = 1.50, 95% CI: 0.86-2.61, P = .15), and target lesion failure (OR = 1.34, 95% CI: 0.76-2.35, P = .31) did not differ between BVS and DES groups.ConclusionAt mid-term follow-up, BVS had a higher risk of TLR and ST/ScT than the second-generation DES in patients with acute coronary syndromes. ST/ScT was the key factor indicating the decreased safety and effectiveness of BVS relative to DES.

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