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  • Title: Paclitaxel-eluting balloon versus everolimus-eluting stent for treatment of drug-eluting stent restenosis.
    Author: Almalla M, Schröder J, Pross V, Marx N, Hoffmann R.
    Journal: Catheter Cardiovasc Interv; 2014 May 01; 83(6):881-7. PubMed ID: 23765557.
    Abstract:
    OBJECTIVE: Drug-eluting stent (DES) implantation is a very effective treatment of bare-metal stent-in-stent restenosis (BMS-ISR). Therapeutic options for drug-eluting stent-in-stent restenosis (DES-ISR) are less well defined, as there are only few data on safety and effectiveness of interventional modalities. This study compared the 1-year clinical outcome after the use of drug-eluting balloon (DEB) to second-generation everolimus-eluting stent (EES) for treatment of DES-ISR. METHODS: This observational study included 86 patients with 86 DES-ISR. Forty patients were treated by repeat percutaneous coronary intervention (PCI) using an EES. Forty-six patients were treated by repeat PCI using a DEB. Follow-up periods were 22 ± 11 and 25 ± 19 months, respectively. The primary endpoint of the study was survival free of major adverse cardiac events (MACEs) at 1 year. Secondary endpoints were needed for target lesion revascularization (TLR), definite stent thrombosis (ST) at 1 year, and MACE rate during total follow-up period. RESULTS: Baseline clinical and angiographic parameters were comparable between the two groups. EES were associated with a higher MACE rate at 1 year compared to DEB (27.5 vs. 8.6%, respectively; P = 0.046). TLR rates for EES and DEB were 22.5% versus 4.3%, respectively, P = 0.029, while rates of definite ST at 1 year follow-up were comparable (2.5% vs. 0%, respectively; P = 0.945). There were no differences in myocardial infarction rates between the two groups (5% vs. 2%, respectively; P = 0.595) and in mortality. Considering the complete follow-up periods, DEB were associated with significantly less MACE compared to EES (log-rank test, P = 0.045). Furthermore, comparison of TLR rates showed a strong trend in favor of DEB compared to EES (P = 0.074). CONCLUSIONS: Treatment of DES-ISR using a DEB is associated with favorable rates of MACE and TLR at 1-year follow-up compared to the implantation of an EES.
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