Safe Reentry for False Aneurysm Operations in High-Risk Patients

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Aortic Surgery

Background:

• Standardized surgical reentry strategies for high-risk patients with postoperative aortic false aneurysm (PAFA) are lacking.
• Large or anterior PAFA presents unique challenges for safe surgical reintervention.

Purpose of the Study:

• To describe an effective and safe surgical reentry strategy for high-risk patients with PAFA.
• To evaluate the outcomes of this novel approach compared to conventional surgery.

Main Methods:

• Prospective analysis of 27 patients treated for PAFA between 2006 and 2015.
• Patients were categorized into high-risk (Group A, diameter ≥3 cm, anterior) and low-risk (Group B, diameter <3 cm, posterior) based on CT scans.
• High-risk patients underwent a safe surgical strategy with continuous cerebral, visceral, and coronary perfusion before resternotomy; low-risk patients had conventional surgery.

Main Results:

• Overall 30-day mortality was 7.4% (1 patient in each group), with no aorta-related mortality at 1 or 5 years.
• Kaplan-Meier survival estimates at 1 and 5 years were similar between groups (e.g., 5-year survival ~72-73%).
• Freedom from reoperation for recurrent aortic disease was 100% at 1 year and 88% at 5 years.

Conclusions:

• The described safe reentry technique provides effective early and midterm outcomes for high-risk PAFA patients.
• Outcomes for high-risk patients using the safe reentry strategy were comparable to low-risk patients undergoing conventional surgery.
• This approach offers a viable solution for managing complex PAFA cases.