Surgery for acute type A aortic dissection: is advanced age a contraindication?

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Aortic Surgery

Background:

• Increasing lifespan leads to more elderly patients requiring cardiac surgery.
• Aortic dissection is a critical condition necessitating timely surgical intervention.
• Outcomes in elderly patients undergoing aortic dissection surgery require specific evaluation.

Purpose of the Study:

• To compare early and late surgical outcomes in patients over 70 with those younger than 70.
• To identify clinical challenges specific to elderly patients undergoing aortic dissection repair.
• To assess the safety and efficacy of aortic dissection surgery in older populations.

Main Methods:

• Retrospective analysis of 315 patients undergoing emergency surgery for acute type A aortic dissection (1976-2001).
• Patients were divided into two groups: younger than 70 years (Group 1, n=245) and 70 years or older (Group 2, n=70).
• Comparison of early outcomes (hospital mortality) and late outcomes (actuarial survival).

Main Results:

• Hospital mortality rates were comparable: 20.5% in Group 1 vs. 17.6% in Group 2 (p=0.751).
• Mean extracorporeal circulation and cross-clamp times were similar between groups, with a shorter cross-clamp time in older patients (p=0.009).
• Actuarial survival rates at mean follow-up were not significantly different: 77.1% (Group 1) vs. 80% (Group 2) (p=0.619).

Conclusions:

• Surgery for type A acute aortic dissection in patients 70 years or older yields results comparable to younger patients.
• No significant differences in 30-day mortality or long-term survival were observed between the age groups.
• Surgical intervention for acute type A aortic dissection in elderly patients can be performed with acceptable risk and satisfactory outcomes.