Follow-up
No patient required unplanned intervention on distal aorta. Fifteen
patients (26.8%) underwent a scheduled second stage (Figure 3): 12
aneurysms extending to the distal portion of the descending aorta, 2
thoracoabdominal aorta aneurysms and 1 type A chronic aortic dissection.
Thirteen patients were treated endovascularly (12 thoracic endovascular
aortic repair -TEVAR- and 1 fenestrated/branched endovascular aneurysm
repair), 1 patient underwent an open repair and 1 patient a hybrid
approach (TEVAR extension of E-vita Open prosthesis and subsequently
open repair of distal aorta).
Mid-term clinical follow-up was achieved for all the patients (mean
follow up: 20.9±18 months). One- and three-year overall survival was
90.7% and 80.7% (Figure 4). Three patients underwent a reintervention
during the follow-up. Reasons were type Ib endoleak (n=1),
pseudoaneurysm of the supra-aortic arteries patch anastomosis (n=1) and
a distal false lumen enlargement in a Type A chronic dissection.
In acute and chronic dissections, a follow-up CT scan at 3 months was
available in 24/26 patients. No stent induced new entry was detected.
Complete thrombosis at mid portion of the stent-grafted aortic segment
was observed in 79.2% of patients (87.5% in acute dissection and
62.5% in chronic dissection, p=0.2) and at its distal aspect in 50%
(56.3% in acute dissection and 37.5% in chronic dissection, p=0.6).
Distal to the stent graft, complete false lumen perfusion remained in
62.5% (50% in acute dissection and 85.7% in chronic dissection,
p=0.1).