Benefits of final proximal optimization technique (POT) in provisional stenting

International Journal of Cardiology
François DerimayGérard Finet

Abstract

Initial proximal optimization technique (POT) in provisional stenting improves global malapposition, side-branch (SB) obstruction (SBO) and conservation of arterial circularity. The specific mechanical effects of a final POT sequence concluding the main provisional stenting techniques, on the other hand, are unknown. Synergy™ stents were implanted on fractal coronary bifurcation bench models using the main provisional stenting techniques (n = 5 per group): kissing-balloon inflation (KBI), snuggle, and rePOT (initial POT + SB inflation + final POT). Final results were quantified on 2D and 3D OCT before and after final POT. Whichever the technique, final POT significantly decreased global malapposition (from 7.6 ± 5.3% to 2.2 ± 2.5%, p < 0.05) and proximal elliptic deformation (from 1.15 ± 0.07 to 1.09 ± 0.04, p < 0.05), without impact on SBO (from 11.5 ± 9.6% to 12.9 ± 10.6%, NS). However, final POT failed to completely correct the elliptic deformation induced by balloon juxtaposition during the KBI and snuggle techniques, with final elliptic ratios of 1.11 ± 0.03 and 1.11 ± 0.04 respectively, significantly higher than with the complete rePOT sequence: 1.05 ± 0.02 (p < 0.05). Like initial POT, final POT is recommended whatever t...Continue Reading

Citations

May 11, 2019·Korean Circulation Journal·Ramesh DaggubatiGianluca Rigatelli
May 10, 2020·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·Yusuke WatanabeAntonio Colombo
Mar 20, 2019·The International Journal of Cardiovascular Imaging·Yoshinobu MurasatoUNKNOWN 3D-OCT Bifurcation Registry Investigators
Feb 6, 2020·Archives of Cardiovascular Diseases·François DérimayGérard Finet
Jul 14, 2020·EuroIntervention : Journal of EuroPCR in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology·Yoshinobu MurasatoKiyotaka Iwasaki

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