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

Abstract：

AIMS: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. METHODS AND RESULTS: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). CONCLUSIONS:Like initial POT, final POT is recommended whatever the provisional stenting technique used. However, final POT fails to completely correct all proximal elliptic deformation associated with "kissing-like" techniques, in contrast to results with the rePOT sequence.

journal_name

Int J Cardiol

journal_title

International journal of cardiology

authors

Dérimay F,Rioufol G,Cellier G,Souteyrand G,Finet G

doi

10.1016/j.ijcard.2018.09.041

subject

Has Abstract

pub_date

2019-01-01 00:00:00

pages

71-73

eissn

0167-5273

issn

1874-1754

pii

S0167-5273(18)33298-4

journal_volume

274

pub_type

杂志文章

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