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Intravascular ultrasound enhances the safety of rotational atherectomy Effect of orbital atherectomy in calcified coronary artery lesions as assessed by optical coherence tomography Trends in Usage and Clinical Outcomes of Coronary Atherectomy: A Report From the National Cardiovascular Data Registry CathPCI Registry In vivo comparison of lipid-rich plaque on near-infrared spectroscopy with histopathological analysis of coronary atherectomy specimens Two-year outcomes after treatment of severely calcified coronary lesions with the orbital atherectomy system and the impact of stent types: Insight from the ORBIT II trial Chronic Total Occlusion Interventions: Update on Current Tips and Tricks In-Hospital Outcomes of Chronic Total Occlusion Percutaneous Coronary Interventions in Patients With Prior Coronary Artery Bypass Graft Surgery Temporal changes in radial access use, associates and outcomes in patients undergoing PCI using rotational atherectomy between 2007 and 2014: results from the British Cardiovascular Intervention Society national database Rotational Atherectomy in acute STEMI with heavily calcified culprit lesion is a rule breaking solution Procedural Success and Outcomes With Increasing Use of Enabling Strategies for Chronic Total Occlusion Intervention
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Original Research2018 Apr;30(4):121-124.

JOURNAL:J Invasive Cardiol. Article Link

Multicenter Registry of Real-World Patients With Severely Calcified Coronary Lesions Undergoing Orbital Atherectomy: 1-Year Outcomes

Lee MS, Shlofmitz E, Goldberg A et al. Keywords: Orbital atherectomy; severely calcified coronary lesions; outcome

ABSTRACT


OBJECTIVES - We report the 1-year outcomes of real-world patients with severely calcified coronary arteries who underwent orbital atherectomy.


BACKGROUND - Percutaneous coronary intervention of heavily calcified lesions is technically challenging and associated with worse clinical outcomes. Modification of severely calcified coronary lesions with orbital atherectomy facilitates stent delivery and expansion. Although we previously reported the safety of orbital atherectomy at 30 days in all comers with severely calcified coronary lesions, including patients who were excluded from the ORBIT II trial, longer-term follow-up is unknown.

METHODS - We retrospectively analyzed 458 all-comer patients who underwent orbital atherectomy followed by stenting from October 2013 to December 2015 at three centers. The primary endpoint was the 1-year major adverse cardiac and cerebrovascular event (MACCE) rate, defined as the composite of death, myocardial infarction, target-vessel revascularization, and stroke.

RESULTS - One-year data were available for 453/457 patients (98.9%). At 1-year follow-up, the MACCE rate was 12.6%, death rate was 4.0%, myocardial infarction rate was 1.8%, target-vessel revascularization rate was 7.5%, stroke rate was 1.3%, and stent thrombosis rate was 1.3%.

CONCLUSION - Orbital atherectomy is a valuable option for the treatment of severely calcified coronary arteries, including patients with very complex coronary anatomy and severe underlying comorbid conditions. Orbital atherectomy provided acceptable outcomes at 1 year and compared favorably to historical controls. A randomized trial with longer follow-up is needed to determine the optimal treatment strategy for patients with severely calcified coronary lesions.