Acute Type A Aortic Dissection Surgery Performed by Aortic Specialists Improves 2-Year Outcomes

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Aortic Disease

Background:

• Acute Type A aortic dissection (ATAD) is a life-threatening condition requiring emergent surgical intervention.
• The experience level of the surgeon may influence perioperative outcomes and long-term survival in ATAD patients.

Purpose of the Study:

• To evaluate the impact of surgeon experience, specifically aortic specialists (AS) versus non-AS, on perioperative outcomes and survival in patients undergoing emergent aortic operations for ATAD.

Main Methods:

• A single-center retrospective review of 102 patients with ATAD who underwent aortic surgery.
• Patients were categorized based on whether they were operated on by AS (3 surgeons) or non-AS (5 surgeons).
• Multivariable logistic regression and Cox proportional hazard models were used to analyze associations with outcomes and survival.

Main Results:

• Patients operated on by AS (n=60) showed a trend towards lower 30-day mortality compared to non-AS (n=42) (6.6% vs. 16.6%, p=0.2).
• AS performed significantly more root replacement procedures (41.6% vs. 23.8%, p=0.049) and utilized cerebral perfusion more frequently (p=0.003).
• AS status was an independent predictor of improved 2-year survival (HR: 0.37, p=0.03).

Conclusions:

• Emergent aortic operations for ATAD performed by AS are associated with a reduced adjusted risk of 2-year mortality.
• These findings support the establishment of specialized thoracic aortic emergency call teams staffed by AS to improve patient outcomes.