Real-life cases revealed the problems that can arise from aortic cross-clamping with available vascular clamps (Rylski et al., 2016). Intimal damage, local dissection potentially leading to aortic dissection type A, the dislodgement of atheromatous material and aortic plaque rupture (Rylski, 2015a: p. 4).

The additional hinge in the upper jaw of the Kowalski clamp allows the adjustment of the applied pressure on the proximal and the distal quartile and is consequently distributed identically as shown in below graph (Rylski et al., 2017). Through statistic evidence it was shown that traditional aortic clamps not only have a very unequal pressure distribution (graph on the right side) but also the above described negative effects on the vessel (Rylski et al., 2015b)

The result of the above mentioned scientific evidence of the in vitro study proves that the Kowalski clamp has a very good performance, offering equal pressure distribution along the jaws and by thus can save lifes.