Trial of Orbital Atherectomy Versus Standard Strategy in Calcified Bifurcation Lesions

Inclusion Criteria: * Patients over 18 years of age and * Patients with moderately or severely calcified bifurcation lesions (lateral vessel ≥ 2mm), candidates for PCI with coronary stent implantation, in whom there is the possibility of adequate clinical follow-up at 1 year and * Patients agree to participate in the study, by signing the Informed Consent. Exclusion Criteria: * Patients with revascularization of the artery to be treated within 9 months prior to the index procedure. * Patients with contraindication for the use of Orbital Atherectomy: * Patients in cardiogenic shock. * Patients with Thrombotic lesions. * Patients with Vascular graft disease. * Patients with remain vessel disease. * Patients with severe left ventricular dysfunction. * Patients allergic to the components of the washing serum (glide). * Patients with life expectancy less than one year.