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Just accepted article

Orbital Atherectomy Treatment of Severely Calcified Coronary Lesions in Patients with Impaired Left Ventricular Ejection Fraction: One-Year Outcomes from the ORBIT II Study


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1. University of California Los Angeles, Los Angeles, CA, UNITED STATES; 2. Cardiovascular Systems, Inc, St. Paul, MN; 3. St. Francis Hospital, Roslyn, NY; 4. Northwell Health, Manhasset, NY; 5. The Cardiac and Vascular Institute, Gainesville, FL; 6. Metropolitan Heart and Vascular Institute, Mercy Hospital, Minneapolis, MN


Aims: Percutaneous coronary intervention (PCI) of severe coronary artery calcification (CAC) is challenging. The ORBIT II study demonstrated the safety and efficacy of orbital atherectomy (OA) in patients with severe CAC. Microparticulate liberated during OA may disturb coronary microcirculation. We evaluated OA treatment in patients with left ventricular systolic dysfunction.

Methods and results: Patients were group…

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