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目的:为活体肝移植(LDLT)提供有关肝中静脉(MHV)的解剖学资料。方法:通过50例成人无病变肝标本剥离解剖,对MHV主干进行形态学观测,采集相关数据并进行统计分析。结果:MHV与肝左静脉(LHV)共干者为80.0%(40/50),单独开口者为20.0%(10/50),其中前者77.5%(31/40),后者90.0%(9/10)开口于IVC肝后段上份1:00点位;MHV依主干支数可分为三型;MHV主干、肝外段、外科干长分别为(68.3±15.4)mm,(6.9±2.8)mm,(8.1±6.2)mm;主干汇入IVC处(近端)、中点(1/2处)及起始端内径分别为(8.7±1.5)mm,(7.3±1.4)mm,(6.4±1.5)mm;MHV与IVC的夹角为(50.0±9.8)°;MHV主干上壁距IVC汇入口1～4cm处及起始处至肝膈面的深度分别为(14.9±6.4)mm,(26.4±6.9)mm,(35.3±9.2)mm,(38.8±5.0)mm,(34.5±5.2)mm;MHV主干走行与传统定位肝中裂的“标志线”并非完全一致。结论:MHV汇入IVC的形式以MHV与LHV共干者居多;MHV单独汇入IVC者其开口部位较共干者有相对呈向前的趋势;MHV主干在肝膈面的投影多位于“标志线”的右侧。
OBJECTIVE: To provide anatomical data on living hepatic vein (MHV) for living donor liver transplantation (LDLT). Methods: Morphological observation of MHV stems was performed in 50 adult non-diseased liver specimens. Relevant data were collected and analyzed statistically. Results: 80.0% (40/50) of MHV and LHV were co-primary, 20.0% (10/50) of those with MHV alone, of which 77.5% (31/40) and 90.0% / 10) opened at 1:00 in the posterior segment of IVC. MHV could be divided into three types according to the trunk count. The numbers of MHV trunk, extrahepatic segment and surgical stem were (68.3 ± 15.4) mm and (6.9 ± (8.7 ± 1.5) mm, (7.3 ± 1.4) mm and (7.3 ± 1.4) mm, respectively, at the midpoint (1/2) and at the beginning of the IVC 6.4 ± 1.5) mm, and the angle between MHV and IVC was (50.0 ± 9.8) °. The depths of MHV trunk upper wall from the IVC entrance 1-4cm and from the origin to the MHD were (14.9 ± 6.4) mm , (26.4 ± 6.9) mm, (35.3 ± 9.2) mm, (38.8 ± 5.0) mm and (34.5 ± 5.2) mm, respectively. The MHV trunk movement was not completely consistent with the traditional “ Conclusions: MHV was mainly imported into IVC with MHV and LHV co-workers. MHV alone with IVC showed a relatively forward-directed opening compared with co-workers. The projection of MHV trunk in the surface of the liver was mostly located in the ” Mark line "on the right.