ABSTRACT
Six post-SES restenoses were located at coronary ostia (30%). At angiography, the ostium did not seem to be covered by the stent in 1 case, which was classified as proximal edge restenosis. The remaining 5 lesions appeared to be covered by stents at angiographic inspection. Unfortunately, IVUS was available for only one of these cases. However, interestingly in this case, although angiographically unnoticed, a short area at the ostium was observed to be uncovered by SES (Figure 19.2). Moreover, among the 6 ostial lesions, 4 were located in the side branch of bifurcation stenting treatment, which were all treated with ‘T’ stent technique (stent in the side branch implanted with its proximal border located at the ostium of the branch; stent in the main vessel implanted encompassing the side branch ostium, thereby creating a ‘T’ configuration).200
