Author/Editor		Trotovšek, Blaž
Title		Vrste, pogostost in kirurški pomen različic jetrnih ven
Type		monografija
Place		Ljubljana
Publisher		Univerza v Ljubljani, Medicinska fakulteta
Publication year		2004
Volume		str. 71
Language		slo
Abstract		After long being considered as a secondary element in the vascular architecture of thc liver, the hepatic veins and their drainage territories deserve better recognition. Anatomical variations of the intrahepatic and extrahepatic parts of hepatic veins are frequently observed. Surgeons have to be aware of these variations and must consider them important in liver resections or transplantation procedures. The aim of this study was to find anatomical variations of hepatic veins especially on sectional and segmental level, to determine their frequency, to arrange them into types and to evaluate their impact on surgical procedures in liver resection and transplantation. We have analyzed 100 corrosion casts of the human liver. The corrosion cast methodology enabled three-dimensional study of sectional, segmental and subsegmental hepatic veins, their variations, course, contluencing and drainage territories in relation to the structures of the portal pedicle. The impact of anatomical variations on surgical procedures was evaluated. The right portal fissure contained superior right hepatic vein (SRHV) in 98% of cases and we found this vein to be constanty present. In 79% the tributary-free part of the SRHV before its inflow to the inferior vena cava (IVC) was >= 10mm. Five different types were determined according to anatornical variations of SRHV. On 33% of casts we found accessory veins (middle and inferior right hepatic veins). Right hepatic veins predominantly drained (> 50%) the right posterior section and were considered as an important drainage route (>= 20%) of the right anterior section. Anastomoses between larger hepatic veins in the right hemiliver were observed in 29% of the casts. Venous drainage of segment 1 and 9 to the IVC was dominant in 95% and in 30% respectively. (Abstract truncated at 2000 characters).
Descriptors		LIVER LIVER CIRCULATION HEPATIC VEINS CORROSION CASTING