(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.(b)(4).The device was not returned for evaluation.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 dissection is listed in the xience alpine everolimus eluting coronary stent systems instructions for use, as a known patient effect of coronary stenting procedures.It should be noted, the xience alpine everolimus eluting coronary stent system, domestic instructions for use (ifu), states: when treating multiple lesions within the same vessel, stent the distal lesion prior to stenting the proximal lesion.The ifu deviation does not appear to have directly caused or contributed to the reported device issue.A conclusive cause for the reported patient effect, and the relationship to the product, if any, cannot be determined.However, the treatment appears to be related to the operational context of the procedure.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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It was reported that the procedure was performed to treat a de novo lesion in the mildly tortuous, mildly calcified mid to distal left anterior descending coronary artery (lad).After implanting a 3 x 18 mm xience xpedition stent in the mid lad, the 3 x 15 mm xience alpine stent was implanted distally.A distal edge dissection was noted and a 2.75 x 12 mm xience xpedition stent was used to cover the dissection.There were no adverse patient sequelae and no clinically significant delay in the procedure.No additional information was provided.
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