It was reported that the procedure was to treat a 90% stenosed moderately calcified, moderately tortuous distal left circumflex lesion.A 3.50 x 23 xience skypoint stent delivery system (sds) was successfully implanted.Two days after the stent was implanted, an emergent procedure was performed as the patient had atrial fibrillation.Defibrillation was performed and red thrombus was confirmed on the distal position of the stent using optical coherence tomography.The thrombosis was treated with thrombus aspiration and atherectomy.No additional information was provided.
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The device was not returned for analysis.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(s) of thrombosis and atrial 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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