Abdominal aortic aneurysm screening: concepts and controversies

Area of Science:

• Vascular Surgery
• Preventive Medicine
• Diagnostic Imaging

Background:

• Abdominal aortic aneurysms (AAAs) are a significant cause of mortality and morbidity.
• AAAs often remain undiagnosed until advanced stages without imaging.
• The United States Preventive Services Task Force (USPSTF) introduced screening recommendations in 2005.

Purpose of the Study:

• To review past and current USPSTF AAA screening recommendations.
• To discuss optimal screening techniques and supporting evidence.
• To highlight emerging concepts and controversies in AAA screening.

Main Methods:

• Review of USPSTF guidelines and updates (2005, 2014).
• Analysis of evidence supporting AAA screening.
• Discussion of alternative guidelines and screening modalities.

Main Results:

• USPSTF recommended one-time ultrasound screening for elderly male smokers in 2005.
• Guidelines were reaffirmed in 2014, with revisions now under consideration.
• Conflicting data on screening benefits and underutilization are noted.

Conclusions:

• Optimal screening techniques are crucial for early AAA detection.
• Ongoing review addresses screening benefits, utilization, and follow-up inconsistencies.
• Emerging concepts include alternative modalities and managing incidental findings.