[Treatment Strategy for Stanford Type A Acute Aortic Dissection]

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Aortic Disease Management

Background:

• Stanford type A acute aortic dissection necessitates emergency surgical intervention.
• Current surgical strategies involve hemiarch replacement, with extended resection reserved for difficult entry tear cases.

Purpose of the Study:

• To retrospectively examine the outcomes of Stanford type A acute aortic dissection based on entry tear site.
• To evaluate the impact of surgical methods and residual entry tear on patient outcomes.

Main Methods:

• Analysis of 320 surgeries for Stanford type A acute aortic dissection performed between 1991 and 2015.
• Patients were categorized into 7 groups based on entry tear sites.
• Outcomes were assessed for short-term and long-term results, surgical techniques, and residual entry tear presence.

Main Results:

• Overall hospital mortality was 13.1%.
• No significant differences in short-term or long-term outcomes were found among different entry tear site groups.
• Surgical methods and the presence or absence of residual entry tear did not significantly affect outcomes.

Conclusions:

• The current therapeutic policy for Stanford type A acute aortic dissection is considered reasonable.
• Aggressive extended surgery for entry tear resection may not be inevitable, especially with emerging minimally invasive techniques like stent-grafting for residual tears.