Examination of resistance of various methods of pulmonary vessel occlusion to hydrostatic pressure

Abstract Objective The aim of this study was to compare pressure resistance the most common methods vessel occlusion during thoracic surgical procedures: ligations, clips, and vascular endostaplers. Methods Pulmonary vessels were obtained routine surgeries. A ball-tipped cannula inserted through an opening in side wall secured with a linen ligature from slipping out. Subsequently, saline infused into vessel. We recorded on which leakage occurred. Results total 65 vessels, divided between 3 groups, enrolled study. In endostaplers group, median bursting pressures 262.5 mmHg 300 for arteries veins, respectively. case it over 750 both types vessels. same results observed ligation group. Minimal endostapler 187.5 225 600 675 veins. 525 (arteries) (veins) minimal leaking values occluded ligations. Comparative analysis showed statistically significant differences endostapler-clips endostapler-ligations pairs ( p < 0.001). There no clips Conclusions examined are capable occluding pulmonary under physiological conditions. Furthermore, ligations resistant highly exceeding values.