Skip to Main content Skip to Navigation
Journal articles

Standardized fractal bench test evaluation of coronary stents: Performances in bifurcation lesions treated by the re-proximal optimization technique

Abstract : BACKGROUND: Bifurcation lesions in coronary arteries are complex to treat with coronary stents, which are not designed for that purpose and can be unproperly deployed. Moreover, devices are constantly evolving, and so are angioplasty techniques. OBJECTIVES: The aim of this study was to determine the performances of different stents in the treatment of bifurcation lesions using the re-proximal optimization technique (rePOT). METHODS: Eleven stent platforms were evaluated: Xience Sierra (Abbott), Xience Alpine (Abbott), Synergy (Boston), Coroflex Isar (Bbraun), Cobra PzF (Celonova), Ultimaster (Terumo), Resolute Integrity (Medtronic), Resolute Onyx (Medtronic), Optimax (Hexacath), Orsiro (Biotronik), and Absorb (Abbott). Stents were deployed in a silicone fractal bifurcation model using the rePOT. Micro-computed tomography was performed to assess side branch ostium coverage and strut malapposition, as well as the effect of rePOT on stent cell area. RESULTS: Our study showed significant differences between stent platforms regarding side branch ostium coverage (p = .002). The Synergy and Cobra PzF stents were the most performant devices to avoid ostium coverage. Strut malapposition varied significantly between devices (p = .008) but the percentage of malapposed struts was relatively low. Significant differences were observed between stents regarding the cell area before (p = .002) and also after rePOT (p = .003), and the increase in cell area caused by rePOT varied considerably between devices (p = .08). CONCLUSION: This study highlighted significant differences in the performances of stent platforms deployed in a fractal bifurcation model using rePOT, with a variable impact of the procedure on stent cell area.
Document type :
Journal articles
Complete list of metadata

https://www.hal.inserm.fr/inserm-03246098
Contributor : laboratoire CarMeN Connect in order to contact the contributor
Submitted on : Wednesday, June 2, 2021 - 11:04:30 AM
Last modification on : Wednesday, April 27, 2022 - 4:26:18 AM
Long-term archiving on: : Friday, September 3, 2021 - 6:48:53 PM

File

 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : jamais

Please log in to resquest access to the document

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Citation

P. G. Piriou, M. Bonin, F. Huchet, V. Letocart, T. Manigold, et al.. Standardized fractal bench test evaluation of coronary stents: Performances in bifurcation lesions treated by the re-proximal optimization technique. Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions, 2020, Online ahead of print. ⟨10.1002/ccd.29288⟩. ⟨inserm-03246098⟩

Share

Metrics

Record views

18