It was reported that this was a procedure performed to treat a chronic total occlusion in the right iliac artery.Patient anatomy included two previously implanted stents.Pre dilatation was performed and an 8x80 absolute pro vascular stent was implanted without issue.A second absolute pro vascular stent was implanted proximally, overlapping the first stent, and routine post dilatation was performed.It was noted that the 8x80 stent appeared misshapen, as if it was bulging out and it was observed that a perforation occurred, with the stent extending outside the perforated artery.Massive hemorrhage was seen, and a non-abbott covered stent was implanted to seal the perforation; however, the bleeding continued.A dissection was noted outside the stented area.Prolonged balloon dilatation was performed, and the patient was air-lifted to a second facility.A surgical procedure was performed to repair the iliac artery.The non-abbott covered stent remained patent and no additional intervention was performed, related to the issue with the absolute pro vascular stent.Post surgical procedure, the patient was in stable condition.No additional information was provided.
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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 complaints.The reported patient effects of perforation and hemorrhage, as listed in the absolute pro instructions for use (ifu), are known possible adverse events that may be associated with the use of a stent in peripheral arteries and / or biliary tree.The investigation was unable to determine a cause for the reported difficulties.It may be possible that use of the larger diameter stent may have contributed to the difficulties reported including the misshapen appearance of the stent and the cascading patient effects that occurred after implant and post dilation.However, without having angiograms to evaluate, a definitive cause for the difficulties could not be determined.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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