The exhibition of the right contour of the inferior cava vein in the hepatic surgery

The knowledge of the relationship of the inferior cava vein with the hepatic tissue is fundamental for it approach during the hepatic surgery. Contradictory data is observed in the literature. Objective: To study the relation, the number of confluent veins for the right contour and the distance of the retro-hepatic segment of inferior cava vein. Methods: The study was made on 38 human livers, between 13 and 98 years old of both sexes. Obtained the anatomical piece, the inferior cava vein was dissected, being observed it relation with the hepatic tissue. Inferior cava vein was measured. The retro-hepatic segment and the number of confluent veins for the right lateral contour of the inferior cava vein were measured. Statistic study was accomplished comparing the data in relation to the sex. Results: The lobe caudate and inferior cava vein relation was determined as incomplete in 37 (97,4%) cases. The total distance of the inferior cava vein in retro-hepatic segment was 59,66 mm. The number of confluent veins was of 3,44 larger significantily in the masculine sex (p = 0,027). Conclusions: The incomplete relation of the caudate lobe is found in most of the cases, this fact facilitates the surgical access the inferior cava vein when exposed by right contour. This vein presents a segment relatively short occupying a furrow in the subsequent part of the liver. A small number of veins converges for the right contour, larger significantly in male. The surgeon owes to worry with the dissection of the area due to presence of these vases and the possibility of bleeding.

Vena cava, inferior; Hepatic veins; Liver; Anatomy; Surgery

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