On (b)(6) 2022, this patient underwent endovascular treatment using gore® tag® conformable thoracic stent graft with active control system (ctag/ac) and gore® dryseal flex introducer sheath (dsf) for a thoracic aortic aneurysm.As concomitant procedure, total aortic arch replacement and frozen elephant trunk technique were performed.When the first ctag/ac was deployed, proximal movement was observed.No adverse event due to the movement was reported.The second ctag/ac was successfully deployed on the proximal side.Angiography after removal of the dsf revealed traumatic injury of the right external iliac artery.After dilating the occlusion balloon catheter to intercept blood flow, and two additional stent grafts were deployed from the right common iliac artery to the right external iliac artery.The patient tolerated the procedure.Reportedly, the patient's external iliac artery had a small diameter (6.5-7 mm) and resistance was noted while the sheath was being advanced.The nominal outer diameter of the 24fr dryseal sheath is 9.1mm.
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