Objective: To observe the therapeutic effect of the “modified sandwich” root shaping technique using an artificial vascular sheet in acute type A aortic coarctation surgery. Methods: We retrospectively analyzed the clinical data of 28 patients with acute type A aortic coarctation who were treated with an artificial vascular sheet using the “modified sandwich” method. The operation and postoperative conditions were statistically analyzed. Results: All 28 patients underwent successful surgery with an extracorporeal circulation time of 265.0 (210.0 - 322.5) min, an aortic block time of 151.0 (112.0 - 209.0) min, and a drainage flow rate of 237.5 (126.0 - 297.0) mL at 12 hours postoperatively. There were 2 (7.1%) perioperative deaths caused by renal failure, ischemia in 1 case, and coronary artery causes in 1 case. Postoperative complications included reopening of the chest for hemostasis in 1 case (3.6%) for reasons unrelated to the vascular anastomosis, hemodialysis in 3 cases (10.7%), paraplegia in 1 case (3.6%), and cerebral infarction resulting in impaired mobility of the left upper extremity in 1 case (3.6%). Tracheotomy was performed in 1 case (3.6%), and the duration of mechanical ventilation was 89 (48.0 - 165) h. Among the 26 recovered patients reviewed with aortic enhancement CT before discharge, the artificial vascular anastomosis had smooth blood flow, though 1 case still had residual entrapment in the sinus of the aorta. Conclusion: In acute type A aortic coarctation surgery, the “modified sandwich” technique using an artificial vascular sheet for aortic root shaping is simple, effective, and easy to master. This method can reduce anastomotic blood seepage and prevent anastomotic tear and bleeding, making it worth recommending for clinical application.