Endovascular aneurysm sealing with the Nellix endograft in hemodynamically-unstable ruptured abdominal aortic aneurysm with challenging anatomy

The Journal of Cardiovascular Surgery
Stefano GennaiRoberto Silingardi

Abstract

To assess immediate and midterm outcomes of hemodynamically-unstable patients with ruptured abdominal aortic aneurysm (rAAA) treated with the Nellix endovascular sealing system (EVAS). From June 2014 to June 2017, 21 hemodynamically-unstable rAAA patients with challenging anatomies were treated with EVAS. The mean AAA diameter and neck length measured 73±15 mm and 14±10 mm, respectively. All the patients presented an advance trauma life support (ATLS) hemorrhage class ≥1 confirming a compromised hemodynamic status. Primary endpoints include technical success, treatment success, primary safety and 30-day survival. Secondary endpoints include re-intervention rate and time free-from-reintervention. Technical success was achieved in 95% (N.=20/21); one patient was converted intraoperatively to open surgery due to ongoing hemorrhage. Seven re-interventions were performed within 30-days and one during the follow-up; treatment success rate of 67% and re-intervention rate of 33%. Early endoleaks were diagnosed in 5 patients (24%). Primary safety was 52%. After a mean follow-up of 11±10 months, survival rates were 81%, 62% and 57% at 1, 6 and 12 months, respectively. Time free-from-reintervention was 15±11 months. Emergency-EVAS (eEVAS)...Continue Reading

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