P45945-years clinical outcomes of patients underwent percutaneous coronary intervention for calcified lesions with rotational atherectomy and second-generation drug eluting stent

Abstract Background Percutaneous coronary Intervention (PCI) with rotational atherectomy (RA) was useful for severe calcified lesions. However, the long-term clinical outcomes of PCI with second-generation drug eluting stent (DES) following RA has been still unclear. Purpose The purpose of this study was to investigate the long-term clinical outcomes of RA followed by second-generation DES. Methods We retrospectively enrolled 254 consecutive patients treated with second-generation DES following RA. The primary outcome was the cumulative 5-year incidence of MACE, defined as cardiac death, myocardial infarction, clinically-driven target lesion revascularization and definite stent thrombosis. Results The incidence of MACE was 22.8% at 5-years. Multivariate analysis showed 3 predictors of MACE, hemodialysis, diabetic mellitus and extremely angulated lesions (>90°).Significantly higher MACE was observed in the high-risk (≥2 risk factors) group, compared with the low-risk (2< risk factors) group (68.7% vs. 18.7%, P90°) 3.08 (1.06–8.93) 0.04 Kaplan-Meier curves for 5-years MACE Conclusions The long-term clinical outcomes of PCI for severely calcified lesions was acceptable. However, the clinical outcomes of patients classified high risk cohort was unsatisfactory.