The patients demographics were obtained from the index procedure date.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.It should be noted that the reported patient effects of prolapse and dissection are listed in the xience sierra, everolimus eluting coronary stent system instructions for use as known patient effects of coronary stenting procedures.A conclusive cause for the reported patient effect(s), and the relationship to the product, if any, cannot be determined; however, the reported 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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Patient id: (b)(6).It was reported that on (b)(6) 2019, a percutaneous intervention was performed on the proximal left anterior descending (lad) coronary artery, moderately calcified lesion with in-stent restenosis (stent not specified).Pre-dilatation was performed and a 3.5x28mm xience sierra stent (1550350-28, 9052341) was implanted in the proximal lad.Following, an intra-stent plaque protrusion was observed, left untreated.A distal stent edge dissection had also occurred with additional dilatation performed following.0% residual stenosis with timi flow iii was observed following.On (b)(6) 2021, the patient was admitted to the hospital with midsternal pressure on exertion, along with dyspnea.Imaging was performed and the ostial lad had 90% stenosis with 95% mid in-stent restenosis.The right coronary artery (rca) was occluded with collaterals.The 3.5x28mm xience sierra stent had remained patent, without restenosis.On (b)(6) 2021, a coronary artery bypass graft (cabg) was performed.A graft was placed to the lad and posterior descending coronary artery.Per physician, the event starting on (b)(6) 2021 was unrelated to the xience sierra stent and unrelated to the index procedure.There was no restenosis observed in the xience sierra stent and there was no device malfunction.No additional information was provided regarding this issue.
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