It was reported that the procedure was to treat a lesion in the upper third of the superficial femoral artery (sfa) with more than 70% stenosis, heavy calcification and no tortuosity.The 6.0x60mm absolute pro self-expanding stent was deployed, however, there was resistance upon removal of the delivery system possibly the stent being caught in the introducer.The delivery system was finally removed independently but the result of the stent implanted was not optimal due to a little migration and elongation but no portion of the elongated stent is in healthy tissue.The patient is well, good pulse, and has been discharged.There was no adverse patient effect and there was no clinically significant delay in the procedure.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.Additionally, a review of the complaint history identified no other incidents from this lot.It is possible that during delivery system removal the stent inadvertently got caught on the delivery system and/or the introducer sheath thus resulting in the reported difficult to remove and resulting in the reported stretched stent and the reported stent migration; however, this could not be confirmed.The investigation determined a conclusive cause for the reported difficulties cannot be determined.There is no indication of a product quality issue with respect to manufacture, design or labeling.Na.
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