SURGICAL ANATOMY OF THE PORTA HEPATIS CAVA

Abstract

            As a result of the research, it was determined that in all cases, the right and left hepatic veins were noted, while the middle hepatic vein was not detected in 3.4% of cases. Of the other hepatic veins, we did not often encounter the right [57.4%] and left [63.4%] dorsal veins and the left fissural vein [37.9%]. There are individual features in the drainage of the right and left portal lobes of the liver. One of the key points in performing anatomical resections is the identification of the hepatic veins in the hilum – near their inclusion in the inferior vena cava. In connection with all of the above, the relationship between the terminal parts of the hepatic veins acquires great practical importance. In the process of research, it was determined that as a result of detailing, four types of connection of the left and middle veins are distinguished. The conditions of approach to the terminal parts of the inferior vena cava are also determined by the form of the caval door of the liver, which may be open, closed, or transitional. It is established that the conditions of the hepatic veins at the place of their inclusion in the inferior vena cava are different from individual to individual and depend on the length of the terminal parts of the hepatic veins, their caliber and the angle of their inclusion in the inferior vena cava. As a result of the study, the conclusion is made that the conditions for dissecting the veins under open door conditions are more acceptable to the surgeon than when the door is closed.