Csi - oas diamondback 360 coronary classic guidewire lot # 191513 broke during procedure and was unable to be retrieved resulting in patient requiring open heart surgery.Catheter inserted by guidewire, left coronary system injected and multiple views taken.Wire exchanged for a pt2x300 over a 1.5x20 balloon, rt2 inserted into the circumflex, coronary artery visualized, interventional wire removed, interventional guidewire inserted.Pt2x300 reinserted, interventional wire removed, interventional guidewire reinserted, viperwire reinserted, coronary artery visualized, ptca balloon removed, coronary artery visualized, viperwire sheared and distal piece of wire remains in circumflex artery.Dates of use: (b)(6) 2018.Diagnosis or reason for use: cardiac artery disease (70 percent distal left main, 80 percent circ).
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