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  • Title: Endovascular aortic repair with the Gore Excluder Conformable endograft in severe neck angulation: Preliminary experience and technical aspects.
    Author: Bonvini S, Tasselli S, Raunig I, Wassermann V, Piazza M, Antonello M.
    Journal: Vascular; 2021 Apr; 29(2):183-189. PubMed ID: 32869729.
    Abstract:
    OBJECTIVES: Endovascular procedures are now the standard of care for endovascular aortic aneurysm repair but treatment of hostile proximal neck anatomy is still challenging. New endografts were brought to the market specifically designed to accommodate severe neck angulation. Authors describe a preliminary experience and early results using the Gore Excluder Conformable endograft (W. L. Gore & Associates, Flagstaff, Ariz) and its active control system in severe neck angulation with a standardized technical approach to achieve precise deployment in this hostile anatomy. METHODS: From June 2019 to May 2020, five patients with abdominal aortic aneurysm and severe neck angulation (≥70°) were treated with the Gore Excluder Conformable endograft at two different centers. Deployment of this endograft in this kind of anatomy should be aggressive starting over the level of renal arteries due to risk of distal migration downward on the external curvature and difficulty in upward repositioning. Authors suggested a standard technique with a routine through-and-through axillary-femoral approach, using a floppy guidewire together with preventive cannulation of the lower renal artery if a short neck (<15 mm) is associated. RESULTS: Endovascular aortic procedures were successfully completed in all patients. Final deployment of the stent graft using our standardized technical approach was extremely precise in all cases even if redeployment of the graft was necessary in all cases. No other secondary procedures were needed. At 30 days, no type IA endoleak was recorded and no aneurysm-related secondary procedures were performed. Median follow-up for this group of patients was 5.2 months (range 1-11). Early results revealed no type IA endoleak and no migration at Ct angiogram. No aneurysm-related secondary procedures were required. CONCLUSION: Routine use of through-and-through axillary-femoral guidewire associated with selective pre-cannulation of the lower renal artery allows a precise deployment of the Gore Excluder Conformable endograft in difficult anatomies possibly affecting early outcomes.
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