[Postoperative Outcomes of Stanford Type A Acute Aortic Dissection with Preoperative Cardiac Arrest]

This single-center retrospective study evaluated postoperative outcomes in Stanford type A acute aortic dissection(AAAD)patients presenting with preoperative cardiopulmonary arrest(CPA)between January 2021 and May 2025, Methods:Among 390 consecutive AAAD cases undergoing emergency surgery, 18(4.6%)presented with CPA, We assessed 30-day mortality, return of spontaneous circulation(ROSC), and use of preoperative veno-arterial extracorporeal membrane oxygenation(VA-ECMO), Results:The 30-day mortality was 72.2%, ROSC occurred in 4 cases(22.2%), and ROSC-positive patients had significantly lower mortality(p=0.022), Preoperative VA-ECMO was used in 7 cases(38.9%), none of whom survived(p=0.013), Conclusions:AAAD with preoperative CPA carries extremely high mortality, but patients achieving ROSC may benefit from urgent surgical intervention, VA-ECMO appears to confer no survival advantage, Early survivors often achieve favorable long-term outcomes, in line with prior literature.