On (b)(6) 2018, pt underwent a left heart catheterization, selective coronary angiography, vein graft angiography, aortic root angiography and orbital atherectomy.During the orbital atherectomy, 1.25mm coronary csi device was used but stalled twice.The coronary csi device was withdrawn and it was noted that the guidewire was fractured and a portion of the guidewire was retained in the coronary artery.During the angiography, a coronary perforation discovered and the appropriate steps were taken to manage the pt's critical condition and the coronary perforation during the procedure.
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