OBJECTIVES: To present an 8-year clinical experience in the endovascular treatment of short-necked and juxtarenal abdominal aortic aneurysm (AAA) with fenestrated stent grafts. METHODS: At our tertiary referral centre, all patients treated with fenestrated and branched stent grafts have been enrolled in an investigational device protocol database. Patients with short-necked or juxtarenal AAA managed with fenestrated endovascular aneurysm repair (F-EVAR) between November 2001 and April 2009 were retrospectively reviewed. Patients treated at other hospitals under the supervision of the main author were excluded from the study. Patients treated for suprarenal or thoraco-abdominal aneurysms were also excluded. All stent grafts used were customised based on the Zenith system. Indications for repair, operative and postoperative mortality and morbidity were evaluated. Differences between groups were determined using analysis of variance with P < 0.05 considered significant. RESULTS: One hundred patients (87 males/13 females) with a median age of 73 years (range, 50-91 years) were treated during the study period; this included 16 patients after previous open surgery or EVAR. Thirty-day mortality was 1%. Intra-operative conversion to open repair was needed in one patient. Operative visceral vessel perfusion rate was 98.9% (272/275). Median follow-up was 24 months (range, 1-87 months). Twenty-two patients died during follow-up, all aneurysm unrelated. No aneurysm ruptured. Estimated survival rates at 1, 2 and 5 years were 90.3 +/- 3.1%, 84.4 +/- 4.0% and 58.5 +/- 8.1%, respectively. Cumulative visceral branch patency was 93.3 +/- 1.9% at 5 years. Visceral artery stent occlusions all occurred within the first 2 postoperative years. Four renal artery stent fractures were observed, of which three were associated with occlusion. Twenty-five patients had an increase of serum creatinine of more than 30%; two of them required dialysis. In general, mean aneurysm sac size decreased significantly during follow-up (P < 0.05). CONCLUSIONS: Fenestrated stent grafting for short-necked and juxtarenal abdominal aortic aneurysm appears safe and effective on the longer term. Renal function deterioration, however, is a major concern. Copyright (c) 2010 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.
OBJECTIVES: To present an 8-year clinical experience in the endovascular treatment of short-necked and juxtarenal abdominal aortic aneurysm (AAA) with fenestrated stent grafts. METHODS: At our tertiary referral centre, all patients treated with fenestrated and branched stent grafts have been enrolled in an investigational device protocol database. Patients with short-necked or juxtarenal AAA managed with fenestrated endovascular aneurysm repair (F-EVAR) between November 2001 and April 2009 were retrospectively reviewed. Patients treated at other hospitals under the supervision of the main author were excluded from the study. Patients treated for suprarenal or thoraco-abdominal aneurysms were also excluded. All stent grafts used were customised based on the Zenith system. Indications for repair, operative and postoperative mortality and morbidity were evaluated. Differences between groups were determined using analysis of variance with P < 0.05 considered significant. RESULTS: One hundred patients (87 males/13 females) with a median age of 73 years (range, 50-91 years) were treated during the study period; this included 16 patients after previous open surgery or EVAR. Thirty-day mortality was 1%. Intra-operative conversion to open repair was needed in one patient. Operative visceral vessel perfusion rate was 98.9% (272/275). Median follow-up was 24 months (range, 1-87 months). Twenty-two patients died during follow-up, all aneurysm unrelated. No aneurysm ruptured. Estimated survival rates at 1, 2 and 5 years were 90.3 +/- 3.1%, 84.4 +/- 4.0% and 58.5 +/- 8.1%, respectively. Cumulative visceral branch patency was 93.3 +/- 1.9% at 5 years. Visceral artery stent occlusions all occurred within the first 2 postoperative years. Four renal artery stent fractures were observed, of which three were associated with occlusion. Twenty-five patients had an increase of serum creatinine of more than 30%; two of them required dialysis. In general, mean aneurysm sac size decreased significantly during follow-up (P < 0.05). CONCLUSIONS: Fenestrated stent grafting for short-necked and juxtarenal abdominal aortic aneurysm appears safe and effective on the longer term. Renal function deterioration, however, is a major concern. Copyright (c) 2010 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.
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