Paul Yock, MD

Publication Details

  • Detailed intravascular ultrasound analysis of Zotarolimus-eluting phosphorylcholine-coated cobalt-chromium alloy stent in de Novo Coronary lesions (results from the ENDEAVOR II trial) AMERICAN JOURNAL OF CARDIOLOGY Sakurai, R., Hongo, Y., Yamasaki, M., Honda, Y., Bonneau, H. N., Yock, P. G., Cutlip, D., Popma, J. J., Zimetbaum, P., Fajadet, J., Kuntz, R. E., Wijns, W., Fitzgerald, P. J. 2007; 100 (5): 818-823


    Zotarolimus-eluting phosphorylcholine-coated cobalt-chromium alloy Driver stents (ZES) demonstrated significant reductions in target lesion revascularization rate with few apparent adverse events compared with bare metal stents (BMS; uncoated Driver stents) in a prospective, multicenter, double-blind, randomized controlled trial in de novo coronary lesions. The aim of this study was to examine detailed vascular responses to ZES compared with BMS using serial intravascular ultrasound analysis. A total of 343 patients (ZES n = 178, BMS n = 165) were enrolled in this formal, prespecified intravascular ultrasound substudy of the Randomized Controlled Trial to Evaluate the Safety and Efficacy of the Medtronic AVE Zotarolimus-Eluting Driver Coronary Stent in de Novo Native Coronary Artery Lesions (ENDEAVOR II), a prospective, multicenter, double-blind, randomized controlled trial to compare ZES and BMS in de novo native coronary artery lesions. Quantitative and qualitative intravascular ultrasound analyses were performed postprocedurally and at 8-month follow-up in stented and reference segments. ZES showed significantly less neointima, with a larger lumen than BMS at 8 months (percentage neointimal volume 17.6 +/- 10.1% vs 29.4 +/- 17.2%, p <0.0001; maximum percentage neointimal area 32.9 +/- 13.0% vs 47.6 +/- 18.6%, p <0.0001; minimum luminal area 4.9 +/- 1.6 vs 4.0 +/- 1.7 mm(2), p <0.0001) and no unfavorable edge effect. In the 18-mm single stents, ZES showed evenly inhibited neointima compared with BMS. Neither persistent stent-edge dissection nor late-acquired incomplete stent apposition was observed in either group. In conclusion, ZES showed evenly inhibited neointima with no apparent adverse vascular response in stented and reference segments at 8 months compared with BMS.

    View details for DOI 10.1016/j.amjcard.2007.04.016

    View details for Web of Science ID 000249226100013

    View details for PubMedID 17719326

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