Sattempt to remove the carotid filter.The retrieval system would not pass behind the vbx stent graft.We tried a variety of things such as low-profile balloon vertebral catheter quick cross catheter among others we could not get the device to pass behind the vbx stent graft.After consultation with others by the phone and in the operating room, we then opted to grab the filter with a snare.We were able to accomplish this in the internal carotid but we could not get the wire to move behind the vbx stent graft.At this point it was clear that the filter was retained and we are not going to be able to remove it.At this point contrast injection demonstrates no flow in the internal carotid.I believe with the snare and the snare sheath and the pulling on the vbx stent graft that we have invaginated the distal end of the stent and may have dissected the distal internal carotid artery.At this point we opted to open the carotid.Diagnosis for use: occlusion and stenosis of bilateral carotid arteries.Fda safety report id# (b)(4).
|