Diamondback 360 1.25mm 145cm coronary orbital atherectomy, lot# 462554-1, exp date [redacted date].Five passes of the diamondback 1.25 orbital atherectomy device performed in the rca (right coronary artery).Crown of diamondback catheter broke off in rca.Team retrieved crown from distal rca at 17:01.The crown separated from the shaft of the catheter.Team was unable to complete the pci and patient left cath lab with some asymptomatic ste (st segment elevation) which was resolving.Md suspected arterial dissection and did not want to inject contrast which may further the dissection.Equipment was pulled out from the patient and procedure stopped.
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