All eligible patients who underwent coronary revascularization with newer generation DES implantation will be enrolled according to inclusion/exclusion criteria after voluntary agreement with informed consent. At the time of enrollment, the investigators will stratify the patients according to LDL-cholesterol <100mg/dL, acute coronary syndrome, and DES type, and randomly assign them in two groups according to lipid-lowering therapy with a 1:1 ratio: Combination therapy group vs. Statin monotherapy group. In this study, four types of new generation DES will be used: Orsiro (Biotronik), Firehawk (Microport), Genoss (Genoss) or D+Storm (CGBIO).~In this study, OCT substudy will be performed for the patients with diffuse long lesions requiring total stented length ≥40 mm (targeted for 1000 patients in the trial). Corresponding patients will be randomly assigned into two groups according to the OCT-based optimal expansion criteria with a 1:1 ratio: meeting Absolute expansion vs. Relative expansion. Absolute expansion criteria indicate minimum stent area (MSA) >4.5mm2 and relative expansion criteria indicate MSA > 80% of average reference lumen area. The patients will receive DES implantation under OCT guidance and stent optimization will be performed to satisfy each expansion criteria.
This study sought to evaluate whether ezetimibe combination to high-intensity statin therapy will have more prominent beneficial effect compared to high-intensity statin monotherapy in patients who underwent coronary revascularization with newer generation drug-eluting stent (DES) implantation. Furthermore, the optimal OCT-based optimal expansion criteria as well as the efficacy and safety of newer generation will be investigated.