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Figure 7 Gaps in Stent Scaffolding and Drug Application Sometimes Occur With Post-Dilation After Crush Bifurcation Stenting
When stents are crushed, especially with classical crush and before kissing post-dilation, there is a "V-shaped" trough between the MB and SB stents on the opposite side to the crushed portion (left panel, B). In this figure, by chance, a wire from the MB lumen (A) has passed outside the stents through the trough (B) before entering the SB stent (C). The post-dilating balloon following this wire will have a short course outside both stents. Upon balloon inflation, the stent strut or struts on the luminal side of the wire will be pushed out of position causing a gap in stent scaffolding (open arrow, lower right panel). Vision stents were used for this deployment. See Online Video 4. Abbreviations as in Figure 1.
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