Exemption number (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.It should be noted that the reported patient effect(s) of stenosis, angina, myocardial infarction, and nausea are listed in the xience sierra, everolimus eluting coronary stent systems instructions for use as a known patient effect(s) 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 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 mid left anterior descending (lad), 90% stenosed lesion.Following pre-dilatation, a 3.0x23mm xience sierra stent was implanted with acceptable results.Timi flow iii and 0% diameter stenosis was observed.On (b)(6) 2019, the patient was admitted to the hospital for nausea / vomiting and left shoulder pain.Mild hyponatremia was noted.The patient's troponin was elevated and a non-st elevated myocardial infarction (nstemi) was diagnosed.As treatment, medications were provided and another pci was performed in the 70% re-stenosed mid lad (target lesion).Per physician, there was no device malfunction.No additional information was provided regarding this issue.
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