Life Expectancy After Abdominal Aortic Aneurysm Repair: Outcomes by Technique

Life expectancy after AAA repair reflects both procedure-related survival and underlying cardiovascular health. Most patients die from comorbid cardiac/pulmonary disease—not aneurysm-related causes.

Open Surgical Repair (OSR)

• Perioperative mortality: 2–5% (elective), 30–50% (ruptured)
• Long-term survival: 10–15 years median in contemporary series
• Durability: Excellent; reintervention rate <5% at 10 years
• Best for: Young/low-risk patients, hostile anatomy for EVAR, connective tissue disorders

Endovascular Aneurysm Repair (EVAR)

• Perioperative mortality: 0.5–1.5% (elective)
• Early survival advantage: Lower 30-day mortality vs. OSR
• Long-term survival: Converges with OSR by 3–5 years (comorbidities dominate)
• Surveillance burden: Lifelong CTA/ultrasound for endoleaks, migration, sac enlargement
• Reintervention rate: 15–25% at 10 years
• Best for: Older/high-risk patients, favorable anatomy (adequate neck, access vessels)

Key Determinants of Long-Term Survival

Factor	Impact
Age at repair	Strongest predictor; each decade reduces life expectancy
Cardiopulmonary fitness	CPET, frailty indices predict survival better than procedure type
Renal function	CKD accelerates cardiovascular mortality
Smoking cessation	Single most impactful modifiable factor
Cancer history	Competing mortality risk
Genetic syndrome	Marfan/Loeys-Dietz: earlier repair, different surveillance

Follow-Up Imperative

• EVAR: CTA at 1, 6, 12 months, then annually
• OSR: Ultrasound annually after first year
• Both: Aggressive cardiovascular risk factor modification

Modern series show 5-year survival ~70–80% for elective repair. The procedure buys time—how much depends on the patient, not the graft.