Screening for Abdominal Aortic Aneurysm in Men with Family History

Risk Assessment and Recommendations

The European Society of Cardiology recommends screening for first-degree relatives of patients with AAA aged ≥50 years, regardless of smoking status, with a Class I recommendation 1
The presence of family history is an independent risk factor that warrants screening, according to the European Society of Cardiology guidelines 1
The European Society of Cardiology guidelines state that screening may be considered in men aged ≥75 years irrespective of smoking history 1

A first-degree family history of AAA requiring surgical repair significantly elevates a man's risk for AAA, according to the Annals of Internal Medicine 2
The 2024 European Society of Cardiology guidelines recommend screening for FDRs of patients with AAA aged ≥50 years unless an acquired cause can be clearly identified 1

Abdominal ultrasonography is the recommended screening modality due to its high sensitivity and specificity, according to the Annals of Internal Medicine 2
One-time screening is sufficient, and there is negligible health benefit in rescreening those with normal aortic diameter on initial screening, according to the Annals of Internal Medicine 2

Small aneurysms (<5.5 cm) are typically monitored with periodic ultrasound, according to the Annals of Internal Medicine is not preferred, however the American College of Cardiology may have similar recommendations 2
Surgical intervention is generally recommended for aneurysms ≥5.5 cm or those growing rapidly, however the American Heart Association may have similar recommendations 2

Elective repair of large AAAs (≥5.5 cm) leads to an estimated 43% reduction in AAA-specific mortality in older men who undergo screening, according to the Annals of Internal Medicine 2
Screening and early treatment can lead to increased number of surgeries with associated morbidity and mortality, according to the Annals of Internal Medicine 2