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Endovascular Preservation of Segmental Arteries During Treatment of Thoracoabdominal Aortic Aneurysm with Fenestrated/Branched Stent-Grafts: Feasibility and outcome.
OBJECTIVES: To evaluate technical success, feasibility, and outcomes of endovascular preservation of segmental arteries (SAs) during fenestrated /branched endovascular aortic repair (F/B-EVAR).
METHODS: A multicenter, retrospective study was conducted on consecutive patients treated with F/B-EVAR and a branch or fenestration for SA preservation. Eleven patients (median age 57, range 45-73; 7 men) were included.
RESULTS: Twelve SAs were preserved. Stent-grafts were custom-made with fenestrations, branches, or a combination of both in 1, 2, and 5 patients. A t-branch was used in 2 patients and physician-modified thoracic stent-graft with a branch was used in 1 patient. Eight branches and 4 fenestrations were used for the preservation of 12 SAs. Four fenestrations and 1 branch for SAs were not bridged and were left for the perfusion of the corresponding SAs. Technical success was achieved in 10/11 (91%) patients. No early mortality occurred. Early morbidities included renal insufficiency without dialysis in 1 patient and partially delayed paraplegia in 1 patient. Pre-discharge computed tomography angiography (CTA) showed patency of all SAs. No early aortic-related re-interventions were required. The median follow-up was 30 (range 10-88) months. Late death occurred in 1 patient. Two SAs occluded in 1 patient with two un-stented fenestrations at 1-year follow-up CTA. This patient did not develop spinal cord ischemia (SCI). Other SAs remained patent during follow-up. One patient with type IIIc endoleak was treated by relining of bridging stents.
CONCLUSION: Endovascular preservation of SAs with F/B-EVAR for thoracoabdominal aortic aneurysm is feasible and safe in selected patients and may add to preventive measures for SCI.
METHODS: A multicenter, retrospective study was conducted on consecutive patients treated with F/B-EVAR and a branch or fenestration for SA preservation. Eleven patients (median age 57, range 45-73; 7 men) were included.
RESULTS: Twelve SAs were preserved. Stent-grafts were custom-made with fenestrations, branches, or a combination of both in 1, 2, and 5 patients. A t-branch was used in 2 patients and physician-modified thoracic stent-graft with a branch was used in 1 patient. Eight branches and 4 fenestrations were used for the preservation of 12 SAs. Four fenestrations and 1 branch for SAs were not bridged and were left for the perfusion of the corresponding SAs. Technical success was achieved in 10/11 (91%) patients. No early mortality occurred. Early morbidities included renal insufficiency without dialysis in 1 patient and partially delayed paraplegia in 1 patient. Pre-discharge computed tomography angiography (CTA) showed patency of all SAs. No early aortic-related re-interventions were required. The median follow-up was 30 (range 10-88) months. Late death occurred in 1 patient. Two SAs occluded in 1 patient with two un-stented fenestrations at 1-year follow-up CTA. This patient did not develop spinal cord ischemia (SCI). Other SAs remained patent during follow-up. One patient with type IIIc endoleak was treated by relining of bridging stents.
CONCLUSION: Endovascular preservation of SAs with F/B-EVAR for thoracoabdominal aortic aneurysm is feasible and safe in selected patients and may add to preventive measures for SCI.
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