On (b)(6), the patient underwent endovascular repair of an abdominal aortic aneurysm using gore® excluder® aaa endoprostheses.It was reported that the left iliac artery was circumferentially calcified and stenosed.The diameter of the iliac artery is reportedly unknown.Angioplasty was performed on the left external iliac artery prior to the insertion of the gore® dryseal sheath ((b)(4)).When the sheath was inserted, some resistance was felt around the bifurcation of the left iliac artery.However, the sheath was advanced to the intended position and the delivery catheter of the trunk ipsilateral leg component was inserted.As the catheter reached around the accessory renal artery, it could not advance further.The physician withdraw the delivery catheter, and angiography showed the abnormal calcification around the tip of the sheath which blocked the advancement of the delivery catheter.The physician suspected that it was a piece of the intima decorticated from the left iliac artery.An open abdominal surgery was performed whereby the damaged left iliac artery and the abdominal aorta were repaired with a surgical graft.The patient tolerated the procedure.It was reported that during the open repair, the damage to the left common iliac artery and the cylindrical intima from the artery were confirmed.
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Manufacturing evaluation performed.A review of the manufacturing records for the device verified that the lot met all pre-release specifications.According to the gore® dryseal sheath instructions for use (ifu), adequate vessel access is required to introduce the sheath into the vasculature.Careful evaluation of vessel size, anatomy, tortuosity, and disease state (including calcification, plaque, and thrombus) is required to ensure successful sheath introduction and subsequent withdrawal.If vessel is not adequate for access, major bleeding, vessel damage, or serious injury to the patient, including death, may result.
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