Midterm Aortic Neck Evolution after EndoSuture Aneurysm Repair: a Single Centre Retrospective Analysis.

OBJECTIVES

Long term results from large international registries have shown satisfactory results in terms of type 1 endoleak (EL1a) prevention and sac shrinkage using EndoSuture aneurysm repair (ESAR) in patients with a hostile aortic neck; however, little is known about the midterm behaviour of the aortic neck after ESAR.

METHODS

This study retrospectively analysed the aortic neck evolution and overall results of ESAR procedures performed at this institution between September 2017 and August 2020. Patients with a hostile aortic neck, and or who were unfit for elective open repair, and or presented with abdominal aortic target vessel or iliac anatomy unsuitable for a fenestrated endograft (FEVAR), and or for whom there was insufficient time for FEVAR manufacturing were included.

RESULTS

Twenty-three patients were included (male 22/23, 96%; median age 75 years, range 58-87 years), and were followed up for 36.5 ± 16.3 months. Technical and procedural success rates were 100% and 96%, respectively. No aortic rupture or dissection was encountered peri-operatively and no displacement, migration, or unachieved penetration of the EndoAnchors was observed. The median operating time was 145 (range 87-236) minutes. No aortic neck dilation was observed at six, 12, 24, and 36 months. There was no persistent or new EL1a or limb occlusion. The 30 day and one year mortality rate was 0%. Six non-aneurysm related deaths were observed during follow up (26%). The overall survival at one, two, and three years was 100%, 100%, and 74%, respectively.

CONCLUSION

This analysis of aortic neck evolution three years after ESAR suggests that EndoAnchors may help prevent aortic neck and suprarenal aortic dilatation in the midterm, without re-interventions for type EL1a. ESAR is a feasible procedure in patients with hostile aortic neck, and/or who are unfit for open surgery, and/or in whom anatomical or technical constraints prevent the use of FEVAR.