It was reported that the procedure was to treat a 75% stenosed lesion in the distal left anterior descending artery (p, dlad).Pre-dilatation was performed with a non-abbott balloon.Then the 2.50x33mm xience skypoint stent delivery system (sds) was advanced to the target lesion and inflation was attempted to 14 atmospheres (atm) for 5 seconds; however, the stent did no deploy; therefore, an indeflator was used to inflate the balloon for a second time to 14 atm.The stent was successfully implanted, but the balloon was noted to be losing pressure.Additionally, a perforation was noted at the distal end of the implanted stent.A non-abbott perfusion balloon was used to treat the perforation.There was no adverse patient sequela.An additional xience skypoint was implanted in the proximal lad to complete the procedure.No additional information was provided.
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A visual inspection was performed on the returned device.The reported material rupture and activation failure including expansion failures was confirmed.Additionally, scratches were noted on the balloon.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no similar incidents/complaints from this lot.The reported patient effect of perforation is listed in the xience skypoint everolimus eluting coronary stent systems instructions for use (ifu) as a known patient effect of coronary stenting procedures.The investigation determined the reported difficulties and subsequent treatment appear to be related to the operational context of the procedure.Additionally, a conclusive cause for the reported patient effect, and the relationship to the product, if any, cannot be determined.In this case, return analysis noted scratches on the balloon and torn material, indicating the balloon potentially interacted with the mildly tortuous and 75% stenosed lesion or an accessory device during the procedure.Interaction between the balloon and the anatomy/device likely resulted in the reported balloon rupture and difficulty during balloon inflation.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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