“…In other words, even if the transverse arch is a “simple” anatomic structure (just a short vessel with 3 branches), aortic arch surgery is absolutely complex and far from being standardized. In some selected situations, nicely evidenced in the “hammers and nails” commentary, 3 the use of the AV Flow can really simplify the procedure. Moreover, the Seldinger technique is one of the tools in the aortic surgeon's box.…”