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Optimal balloon positioning for the proximal optimization technique? An experimental bench study. International journal of cardiology Derimay, F., Rioufol, G., Nishi, T., Kobayashi, Y., Fearon, W. F., Veziers, J., Guerin, P., Finet, G. 2019

Abstract

AIMS: The proximal optimization technique (POT) in coronary bifurcation stenting improves apposition and side-branch obstruction. The POT balloon should be positioned with the distal radio-opaque marker at the carina cut plane. However, the real impact of positioning remains unknown.METHODS AND RESULTS: Synergy stents (Boston Scientific, USA) were implanted on left-main fractal bench models. Initial POT was performed in 3 positions according to distal shoulder position (loss of balloon parallelism) relative to the carina cut plane (n?=?5/group): i) "proximal", 1?mm before carina; ii) "medium", just at carina; iii) "distal", 1?mm after carina. Results were quantified on 2D- and 3D-OCT. Compared to implantation, initial POT improved malapposition in all positions ("proximal": 61.5?±?1.4% vs. 5.1?±?2.7%; "medium": 60.2?±?2.4% vs. 1.3?±?0.6%; "distal": 60.5?±?2.9% vs. 1.1?±?1.8%, p?

View details for DOI 10.1016/j.ijcard.2019.05.041

View details for PubMedID 31130279