Efficacy CompariSon of Pre-stenting Atherectomy Versus Scoring ballooN for calcifieD Coronary Lesions Coronary Lesions

Exclusion Criteria

• •1. Subject is currently participating in an investigational device or pharmaceutical treatment protocol
• •2. Persistent (\>10 minutes) hypotension (systolic blood pressure \<90 mmHg)
• •3. Need for revascularization of multiple lesions during the index PCI
• •4. Unprotected left main (\>50%) or equivalent left main disease
• •5. Non-calcified lesions
• •6. Chronic total occlusions, extreme lesion tortuosity including Type B/C lesions
• •7. Severe left ventricular dysfunction (ejection fraction \<25%)
• •8. History of bleeding diathesis or coagulopathy