The device was not returned for analysis.
A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.
Additionally, a review of the complaint history did not indicate a lot specific quality issue.
The investigation determined the reported difficulties appear to be related to circumstances of the procedure.
There is no indication of a product quality issue with respect to the design, manufacture or labeling of the device.
The other stent delivery system referenced is filed under separate medwatch report number.
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It was reported that the procedure was to treat two heavily calcified lesions, one in the left circumflex (lcx) and the other in the left anterior descending (lad) coronary artery.
Wires and balloons experienced difficulties accessing the lesions, but a few crossed and the lesions were able to be pre-dilated.
A 2.
25x28mm xience prime drug eluting stent (des) was then advanced toward the lcx, and while attempting to push through the heavy calcification, the shaft of the des broke and separated into two pieces.
The device was easily removed.
The lesion was dilated again, but another des failed to cross the lesion.
The lad was then pre-dilated lesion and a 2.
5x33mm xience prime des was advanced but the anatomy was too calcified to cross and the shaft separated into 2 pieces.
The device was easily removed.
The lesion was dilated again and the patient was referred for coronary artery bypass graft surgery.
No additional information was provided.
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