Overview
The goal of this observational study is to find out what factors contribute to a good treatment outcome in patients who have received a stent for their dilation of the main abdominal artery (abdominal aortic aneurysm or AAA). The primary goal of this study is to build a prediction model for abdominal aortic aneurysm shrinkage one year after the treatment.
Eligibility
Inclusion Criteria:
- Age ≥ 18 years;
- Elective, initially technically successful (as described by the ESVS guidelines11), infrarenal EVAR for unruptured infrarenal AAA;
- Implanted endograft is a Gore Excluder, Medtronic Endurant, Cook Zenith, Cordis Incraft, Endologix AFX, Jotec E-Tegra, or Vascutek Anaconda endograft;
- Follow-up of the AAA of at least one year with imaging of the same modality as the preoperative imaging;
- Axial reconstructions of preoperative CT angiography available, preferably in the arterial phase and with 3 mm or smaller slice thickness.
Exclusion Criteria:
- Patients with ruptured or symptomatic AAA;
- Patients that were treated with fenestrated or branched endografts, iliac branched devices, non-CE marked devices within trial setting, other endografts (EVAS cases) or chimney procedures;
- Acute procedures;
- Reintervention before one year follow-up;
- Revision cases after previous open or endovascular aneurysm repair of an AAA;
