Frailty and Physician Modified Fenestrated Endograft for Thoracoabdominal Aortic Pathologies

"Modification procedure Description of modified device is detailed in Section 3.5 of IDE. In summary, the steps involved in modification of the Zenith Alpha thoracic stent grafts are;~1. Unsheathing of the stent graft~2. Retrieval of a trigger wire from the inner cannula of the delivery system~3. Rerouting of the trigger wire along the stent graft~4. Removal of proximal barbs.~5. Creation of fenestrations and/or branch cuffs~6. Placement of radiopaque markers around the fenestrations/ branch cuffs~7. Placement of temporary and/or permanent diameter constraining ties~8. (Optional) Placement of preloaded wires through the fenestrations/branch cuffs"