Management of Segmental Wall Calcification of the Abdominal Aorta

Initial Assessment and Imaging

The European Society of Cardiology recommends obtaining contrast-enhanced cardiovascular computed tomography (CCT) to evaluate the entire aorta using inner-to-inner edge measurements in end-diastole 1, 2
If CCT is contraindicated, consider cardiovascular magnetic resonance (CMR), though calcification assessment is more challenging with this modality 2
Measure the abdominal aortic diameter using the outer-to-outer convention in cross-sectional view, as this method is preferred when atherosclerotic plaques or thrombi are present 3

The European Heart Society recommends elective repair for aneurysmal disease meeting size thresholds (≥55 mm in men, ≥50 mm in women) or when complications develop, with a Class I, Level A recommendation 1, 2
For patients with suitable anatomy and life expectancy >2 years, the European Heart Society recommends endovascular aortic repair (EVAR) as the preferred therapy based on shared decision-making, as it reduces peri-operative mortality to <1% 1, 4

Recognize that direct aortic manipulation during surgery carries high risk of unrepairable injury and distal embolization in patients with severe calcification 5, 6
Surgical techniques to reduce neurologic complications include internal aortic balloon occlusion, "no-touch" techniques, alternate cannulation sites, or replacement of the calcified segment 5, 6
EVAR may be particularly advantageous in these patients to avoid direct aortic manipulation 1

Lifelong surveillance is mandatory with repeat imaging to monitor for aneurysm growth, as calcification itself is a marker of atherosclerotic disease burden 1
Consider repair if aneurysm growth is ≥5 mm in 6 months or ≥10 mm per year (Class IIb, Level C recommendation) 1
Monitor for symptoms that may indicate impending rupture, regardless of diameter 4

Do not perform routine coronary angiography and systematic revascularization before elective AAA repair in patients with stable cardiac symptoms, as this strategy does not improve outcomes or reduce 30-day MI rates (Class III, Level C recommendation) 2, 7
Do not recommend elective AAA repair in patients with limited life expectancy (<2 years), as the risks outweigh benefits (Class III, Level B recommendation) 1
If EVAR is performed, do not neglect post-procedural surveillance, as endoleaks occur in up to one-third of patients and require monitoring with CCT or DUS at 6-12 months, then annually 1, 4