The rates of restenosis and
stent thrombosis after the therapeutic
stent deployment for bifurcation lesions are still comparably high after the introduction of the new-generation
drug-eluting stents (DESs), because of the various factors including their morphology. We experienced a case of a successful
percutaneous coronary intervention using three-dimensional optical coherence tomography (3D OCT) with a single
stent deployment to a bifurcation lesion of the left anterior descending artery (LAD) and left circumflex artery (LCx) with a following kissing-balloon inflation (KBI). The 3D OCT, after the inflation of the jailed ostium of the LCx following the
stent deployment to the LAD crossing the LCx, could clearly demonstrate a
stent deformation and incomplete apposition at an opposite site of the LCx, which may cause high rates of restenosis and
stent thrombosis. These
stent abnormalities were steadily corrected by a subsequent KBI of the LAD and LCx. Furthermore, the 3D OCT images were the same findings as those of the experiments from both an in vitro phantom coronary bifurcation model and macroscopic images of the
stent. <Learning objective: In view of this case report, these modalities with three-dimensional optical coherence tomography and the techniques for the following kissing-balloon inflation may be one of the useful and effective therapeutic strategies to reduce the rates of restenosis and
stent thrombosis of the
percutaneous coronary intervention for bifurcation lesions.>.