It was reported that the patient presented with shortness of breath and the procedure was to treat a lesion in the mid to distal left anterior descending (lad) artery with heavy calcium and moderate tortuosity.Lithotripsy was performed.Two xience skypoint stents, 3.25x38mm (distal part of the lad) and then 4.0x38mm (mid portion of the lad), were implanted.Stents were post dilatated per standard procedure and intravascular ultrasound (ivus) imaging was obtained post stent dilatation.There was no adverse patient effect and there was no clinically significant delay in the procedure.The patient was taken back to the room; however, about 30-45 minutes later, the patient complained about chest pain.An electrocardiogram (ekg) was performed and showed anterior myocardial infarction (mi) on the ekg.The patient was brought back to the lab and after performing the angiogram the 3.23x38 stent was noted to be blocked off.It was determined that the stent 100% thrombosed and had to be opened.In the lab, the patient needed cpr so the patient was intubated and impella device was inserted to provide support.A couple days later the patient was transferred to another facility.No additional information was provided.
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The device was not returned for analysis.Lot history record (lhr) and exception reviews were performed and revealed no indication of a product quality issue.Additionally, a review of the complaint history identified no other incidents from this lot.The reported patient effect(s) of angina, thrombosis and myocardial infarction listed in the xience skypoint 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 subsequent 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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