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The device was not returned for evaluation.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 and/or complaints reported from this lot.It should be noted that the rx herculink elite instruction for use states: ¿the rx herculink elite renal stent system is indicated for use in patients with atherosclerotic disease of the renal arteries following sub-optimal percutaneous transluminal renal angioplasty (ptra) of a de novo or restenotic atherosclerotic lesion(= 15 mm in length) located within 10 mm of the renal ostium and with a reference vessel diameter of 4.0 ¿ 7.0 mm.¿ in this case, it could not be determined if using the herculink elite off-label caused or contributed to the reported stent migration.Based on the information provided, a definitive cause for the stent migration could not be determined.It may be possible that the stent diameter was smaller than the mesenteric artery being treated, or the stent was not fully expanded and apposed to the arterial wall causing the stent to migrate post-deployment; however, this could not be confirmed.The additional treatment to implant the migrated stent outside the intended location was due to case circumstances.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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It was reported that the procedure was to treat a superior mesenteric artery.The vessel was not predilated.A herculink elite was advanced over a spartacore guide wire without issue.The stent was deployed.After stent deployment and upon removal of the delivery system, the stent implant migrated outside the target lesion to the aorta.A larger balloon was advanced to push the stent implant back to the subclavian artery, which was successful although this wasn't the intended artery of treatment.The stent implant was ballooned and implanted.There were no adverse patient sequela and no clinically significant delay.The physician deemed that the superficial mesenteric artery was treated with ballooning and no further intervention was performed.No additional information was provided.
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