100例肠系膜上静脉外科干解剖观察

Anatomical observation of the surgical trunk of the superior mesenteric vein on 100 cadavers

本文观调了100例胸系膜上静脉外科干及其与左、右属支的关系．结果发现：肠系膜上静脉右侧属支汇入型式可分3型，其中合干到占75±4．37％，Henle’s于出现率为67±4．74％，其中汇入肠系膜上静除上役者37例（37±4．87％）．肠系膜上静脉左侧属支（空、回杨静脉）汇入型式亦有3型，其申双交叉到59例（59±4．96％）．外科干出现率为99％，其长度因右侧属支汇入型式而异，平均为30.8±1．0mm．其口径则受左侧耳文汇入型式的影响，平均10±0.56mm.此外，还观察了外科干与邻近结构的关系．依据Holyoke所提出的条件，综合分析结果：适于作肠－腔分流术的外科干为30±4．6％．

The surgical trunk and its relationship with right and left tributaries of S. M. V. were investigated on 100 adult cadavers. The result shows that the drainage Patterns of the right tributaries of S. M. Y. may be classified as 3 types, in which the common trunks were 75% of cases.Among those the Henle's trunk was observed in 67%. This trunk drains to the upper segment of S. M. V. in 37%. Tbere were also 3 types of drainage in the left tributaries, in which the bifurcated patterns were 59%. The surgical trunks were found in 99 % of cases, this length varies from the patterns of the right tributaries of S. M. V. and its average length was 30. 8±1.0mm. Its diameter vares from the patterns of the left tributaries of S. M. Y. and the average diameter was about 10mm. Besides, the relationship of the surgical trunk and its neighbouring structures was also investigated. According to the Holyoke's prindple, the surgical trunk which suited to the mesencaval chunt operation was 30% of cases.