Root reconstruction for proximal repair in acute type A aortic dissection

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Aortic Surgery

Background:

• Acute type A aortic dissection (ATAAD) requires complex aortic root management.
• Comparing root reconstruction versus root replacement is crucial for optimizing patient outcomes.
• Midterm evaluation of aortic insufficiency and root dilation is essential.

Purpose of the Study:

• To compare the efficacy of aortic root reconstruction and root replacement in ATAAD patients.
• To assess rates of aortic insufficiency and aortic root dilation post-surgery.
• To evaluate midterm survival outcomes between the two surgical approaches.

Main Methods:

• Retrospective analysis of 427 ATAAD patients (2008-2016).
• Patients underwent either root reinforcement reconstruction (298 cases) or Bentall procedure (root replacement, 129 cases).
• Data collected included 30-day mortality, operative times, and midterm follow-up (mean 34.5 months).

Main Results:

• 30-day mortality was similar between groups (8.1% vs. 7.0%, P=0.844).
• Midterm survival rates were comparable (86.2% vs. 86.0%, P=0.957).
• Only one patient in the root reconstruction group required a redo procedure for severe aortic regurgitation.

Conclusions:

• Aortic root management in ATAAD depends on root diameter, structure, and dissection extent.
• Aortic root reinforcement reconstruction presents a feasible and safe surgical strategy for the majority of ATAAD patients.
• This approach offers comparable midterm survival to the Bentall procedure.