Yuki Katagiri1, MD; Ryo Torii2, MD; Kuniaki Takahashi1, MD; Erhan Tenekecioglu3, MD; Taku Asano1, MD; Ply Chichareon1, MD; Mariusz Tomaniak3,4, MD; Jan J. Piek1, MD, PhD; Joanna J. Wykrzykowska1, MD, PhD; Nial Bullett5, PhD; Naveed Ahmed5, PhD; Kadem Al-Lamee5, PhD; Rasha Al-Lamee6, MD, PhD; Guy Leclerc7, MD; Pieter Kitslaar8, MSc; Jouke Dijkstra8, PhD; Johan H.C. Reiber8, PhD; Eric K.W. Poon9, PhD; Christos V. Bourantas10,11,12, MD, PhD; Frank J.H. Gijsen13, PhD; Patrick W. Serruys14, MD, PhD; Yoshinobu Onuma14, MD, PhD
1. Amsterdam University Medical Centre, University of Amsterdam, Amsterdam, the Netherlands; 2. Department of Mechanical Engineering, University College London, London, United Kingdom; 3. Department of Interventional Cardiology, Thoraxcenter, Erasmus Medical Center, Rotterdam, the Netherlands; 4. First Department of Cardiology, Medical University of Warsaw, Warsaw, Poland; 5. Arterius Ltd, Leeds, United Kingdom; 6. Imperial College London, London, United Kingdom; 7. AccelLAB Inc., Boisbriand, QC, Canada; 8. LKEB-Division of Image Processing, Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands; 9. Department of Mechanical Engineering, Melbourne School of Engineering, University of Melbourne, Parkville, Australia; 10. Institute of Cardiovascular Sciences, University College London, London, United Kingdom; 11. Department of Cardiology, Barts Heart Centre, London, United Kingdom; 12. School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom; 13. Department of Biomedical Engineering, Thoraxcenter, Erasmus Medical Center, Rotterdam, the Netherlands; 14. Department of Cardiology, National University of Ireland, Galway (NUIG), Galway, Ireland
Aims: The aim of this study was to assess the acute performance of the 95 µm ArterioSorb oriented poly L-lactic acid (PLLA) scaffold in comparison with the XIENCE metallic drug-eluting stent (DES) in porcine coronary arteries.
Methods and results: In 15 non-atherosclerotic Yucatan mini pigs, the ArterioSorb (3.0/14 mm) and XIENCE (3.0/15 mm) were implanted in 25 and 15 vessels, respectively. Acute performance was evaluated by using quantitative coronary angiography (QCA) and optical coherence tomography (OCT). Following three-dimensional reconstruction of the coronary arteries, endothelial shear stress (ESS) was quantified using non-Newtonian steady-flow simulation. Acute recoil measured by QCA was comparable in the two arms. Post-procedural flow and scaffold/stent area by OCT did not differ between the two devices. ESS post procedure was comparable between ArterioSorb and XIENCE (2.21±1.97 vs 2.25±1.71 Pa, p=0.314).
Conclusions: Acute recoil, luminal dimensions and ESS in the ArterioSorb oriented PLLA scaffold with thin struts of 95 µm were comparable to those in the XIENCE metallic DES.