OA passed byante-grade and retro-grade approaches with low rotational speed for a few timeswithout evoking chest pain and ST-elevation. Then, atherectomy underwent byelevating rotational speed. Calcium surrounding from 8 to 1 o’clock was clearlypolished by OA, and OA broke the superficial calcified layer at 2 o’clock (Figure7), which made a following 3.5mm-sized balloon dilatations without indentationat 16 atmospheres (Figure 8). Synergy stent (3.5x20mm) was placed (Figures 9)without post-ballooning owing to well-apposed and almost symmetric dilation(Figure 10). Synergy stent at LMCAos fully obtained up to 12 mm2 (Figure 11).Therefore, PCI was ceased with good coronary flow from LMCA to LAD (Figure 12).
OA broke in thesuperficial layer (Figure 7). A 3.5mm-sized balloon was dilated withoutindentation (Figure 8), and 3.5mm-sized stent was placed (Figures 9).Post-ballooning was not conducted owing to the well apposition of Xience stent(Figure 10). Stent area at LMCAos was also obtained more than 8 mm2 (Figure11), with good angiogram of LMCA and LAD (Figure 12).
Conclusion: Wepresent an useful case of OA to break ISC in patients on HD.
Conclusion: We present a case of9-year old ISC inside 2nd
-generation drug-eluting stent successfullytreated with OA by modifying calcified plaque prior to place additional stentin a patient on HD. Thus, we confirmed that OA exerted the advantage over RAagainst calcified plaques with larger lumen including ISC.