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ClearRounds Health · Cardiology · Quick Reference
AAA
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Vascular & ThromboembolicIntermediateIn progressOne-page PDF
Screening, surveillance by size, BP/smoking management, repair thresholds, and urgent symptoms.
Last reviewed
Pending initial clinical review
Sources / guidelines to verify
- Society for Vascular Surgery AAA Guideline
- USPSTF AAA screening recommendation
Disclaimer: Educational reference only. Not a substitute for clinician judgment, local protocols, or current guideline review.
One-page reference
Draft content pending the site owner’s clinical review. Verify against the sources above and local protocol before clinical use.
1
What it is / why it matters
- Focal aortic dilation ≥3.0 cm; rupture risk rises with size.
- Usually asymptomatic until rupture.
2
Key diagnostic clues
- Often incidental; pulsatile abdominal mass.
- Risk: older male smoker, family history.
- Rupture: abdominal/back pain + hypotension + pulsatile mass.
3
Initial workup
- Ultrasound for screening and surveillance; CT for surgical planning.
- One-time screen for men 65–75 who ever smoked.
4
Management framework
- Risk-factor control — smoking cessation is #1; BP and statin.
- Surveillance by size (e.g., 3.0–3.9 cm every 2–3 yr; 4.0–4.9 yearly; 5.0–5.4 every 6 mo).
- Repair at ≥5.5 cm (men) / ≥5.0 cm (women), rapid growth (>0.5 cm/6 mo), or symptoms.
5
Red flags / escalate now
- Pain + hypotension + pulsatile mass = rupture → EMERGENT surgery.
- New/severe abdominal or back pain in a known AAA; a tender aneurysm.
6
Follow-up / monitoring
- Size surveillance; smoking cessation.
7
Clinic pearls
- Smoking cessation is the single best medical measure.
- A symptomatic or rupturing AAA is a surgical emergency; women rupture at smaller diameters.
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