It was reported that the procedure was to treat a left anterior descending artery (lad) lesion.A 2.5x33mm xience skypoint stent delivery system (sds) was implanted mid-distal and then a 3.0x28mm xience skypoint was implanted proximal-mid with a slight overlap.The stents were post-dilated.There was significant tissue protrusion [prolpase] at the proximal portion of the 2.5x33mm xience skypoint stent just distal to the overlap.It was stented over with 2.5x15mm xience skypoint stent.The procedure was finished at which point the patient started having chest pain.The patient was re-accessed and it was noted that the 2.5x15mm stent thrombosed at the point of tissue protrusion.Stents were post-dilated again.Additionally, proximal calcium at the ostial lad was treated with shockwave and then stented over with a 3.5x18mm xience skypoint stent.Procedure was finished.Patient was removed off the table and started having chest pains again and went into ventricular fibrillation, which was treated with defibrillation.Patient was then transferred to the intensive care unit where he had two more episodes of chest pain and defibrillation.Patient was ultimately successfully discharged.
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The device was not returned for analysis.A review of the electronic lot history record (elhr) for this product was not performed because the lot numer was not reported and the product was not returned for analysis.The reported patient effect(s) of angina, thrombosis and ventricular fibrillation are 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; therefore, no product-related corrective action will be implemented in this case.
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