Palpitate-Eluting Balloon Angioplasty in the Treatment of Coronary Bifurcation Lesion Evaluated by OCT

The aim of the study is to use optical coherence tomography (OCT) to investigate the efficacy of Paclitaxel-eluting PTCA-balloon dilation (SeQuent Please) in SB and drug eluting stent (EXCEL stent) deployment in the main branch (reference diameter: ≥ 2.5 mm and ≤ 4.0 mm, reference diameter of side branch: ≥ 2.0 mm and ≤ 3.5 mm, length of stenoses in either branch ≤ 30 mm) in the treatment of significant (\>70%) de-novo-bifurcation stenoses of any Medina classification type in the native coronary artery as reflected by procedural success and to evaluate the preservation of vessel patency.