Novel Anastomotic Device for the Sandwich Technique in Type A Aortic Dissections—A Human Cadaver Study

In this study, the authors evaluated a novel aortic anastomotic stapler for repairing acute type A aortic dissections using a human cadaver model. Ten felt sandwich repairs were performed, with half completed using conventional sutures and the other half using the stapler. The stapler significantly reduced procedure time (median 2:22 vs 6:40 minutes) without increasing leakage. Importantly, the stapled group showed no distal anastomotic new entry, false lumen perfusion, or dissection progression, while these complications occurred in the sutured group. Microscopy confirmed less tissue trauma with the stapler. The device achieved reliable pin deployment and faster, more homogeneous sealing than sutures. While limited to cadaveric testing, these findings suggest this device may improve safety and efficiency in type A dissection repair, warranting further in vivo validation.