肝脏右后下静脉的临床解剖学研究

A clinical study on the right inferior hepatic vein

目的观测肝脏右后下静脉（inferior right hepatic veins，IRHV）的解剖学结构。方法60具成人尸体肝脏标本，根据肝右后静脉汇入下腔静脉肝后段上、中、下1／3的部位分为上、中、下三组。观察测量IRHV的出现率、数目、口径、肝外行程及其与肝右静脉的关系。结果IRHV出现率为83．33％，口径为2．62～18．46（14．32±1．21）mm，肝外长度为3．26～47．65（10．78±7．81）mm。IRHV直径与其数量呈负相关。IRHV直径与肝右静脉直径呈负相关，IRHV数量与肝右静脉直径呈正相关。结论IRHV口径粗大，出现率高，有肝外行程，和肝右静脉呈彼消此长关系。在肝切除术中应注意避免损伤，活体肝移植时应施行IRHV的修复重建。

Objective To observe the anatomy of the inferior right hepatic veins （IRHV）. Methods The IRHVs were divided into 3 groups according to the location where they entered into the retrohepatic inferior vena cava at： the upper 1/3, middle or lower 1/3. The incidence, number, caliber, extrahepatic length and the relationship between the major hepatic veins （the right, middle and the left hepatic veins） and the IRHV were observed and measured in 60 adult cadavers. Results The incidence of IRHV was 83. 33% with an average diameter of 2.62-18.46（14.32±1.21）mm. Its extrahepatic length was 3.26--47.65 （10.78±7.81）mm. There was a marked negative correlation between the diameter of the IRHV and its number, a marked negative correlation between the diameter of the IRHV and the diameter of the right hepatic vein and a marked positive correlation between the number of the IRHV and the diameter of the right hepatic vein. Conclusions There were high variations in the incidence and anatomy of the IRHV which were related to the diameter of the right hepatic vein. The IRHV was not to be torn during liver resection and should be reconstructed in right liver grafts.