There was no reported device malfunction and the product was not returned as the stent remains in the anatomy.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.The reported patient effect of perforation is listed in the xience sierra everolimus eluting coronary stent systems instructions for use (ifu) as a known patient effect of coronary stenting procedures.Based on the case information and related record review, a conclusive cause for the reported patient effect, and the relationship to the product, if any, cannot be determined and the treatment appears to be related to the circumstances of the procedure.There is no indication of a product quality issue with respect to design, manufacture or labeling of the device.
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It was reported that during a coronary procedure, a 2.5 x 33 mm xience sierra stent and a 2.25 x 15 mm xience sierra stent were implanted in the left anterior descending (lad) artery.Post dilatation was performed at the 2.25 x 15 mm xience sierra stent and a perforation occurred.The 2.8 x 19 mm graftmaster stent was advanced; however, the graftmaster was unable to cross through the 2.25 x 15 mm xience sierra stent.Several attempts were made; however, the graftmaster was unable to cross.The device was removed, and it was noted that the delivery system shaft was kinked.Additional balloon dilatation was performed to treat the perforation, and the perforation was sealed.Post procedure, the patient was in stable condition.No additional information was provided.
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