Abstract: Objective To investigate the feasibility and effect of selective antegrade cerebral perfusion (SACP) and balloon catheter occlusion of descending aorta (BCOD) combined with moderate hypothermic circulatory arrest (MHCA) in the surgical of acute type A aortic dissection (AAAD). Methods The clinical data of 10 patients with AAAD underwent Sun’s surgery procedure in Tianjin Chest Hospital from December 2017 to January 2018 were retrospectively analyzed. All of the patients were treated with classic Sun’s surgery, and SACP+BCOD+MHCA (nasopharyngeal temperature 28 ℃) were performed in the surgery. Clinical date and postoperative outcomes of 10 consecutive patients were analyzed. Results All the 10 patients were improved or recovered from symptoms. The duration of circulatory arrest, cardiopulmonary bypass, cardiac ischemia and duration of operation were (8.75±1.48) min, (153.25±15.27) min, (94.62±12.24) min and (377.62± 32.71) min respectively. The autologous blood transfusion was (800.0 ± 86.6) mL, without allogenic erythrocytes injection. Acute renal failure occurred in 1 patient after operation, and no other significant complications occurred. Conclusion The classic Sun’s surgical procedure with SACP+BCOD+MHCA can shorten the duration of circulatory arrest and operation distinctly. The combination of these techniques results in shorter postoperative recovery time and fewer neurologic complications. Therefore, it is of certain clinical significance and worthy of further study.

Key words: cardiac surgical procedures, aortic dissection, Sun’s procedure, moderate hypothermic circulatory arrest, selective antegrade cerebral perfusion, balloon catheter occlusion of descending aorta, aortic dissection