Chen Huayue, Emura Shoichi, Nagasaki Sachio, Kubo Kin-ya
Department of Anatomy, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan.
Okajimas Folia Anat Jpn. 2012 Feb;88(4):147-51. doi: 10.2535/ofaj.88.147.
The duplication of the inferior vena cava (IVC) is a rare, but well-recognized anomaly. Duplicated IVC has a significant relevance for retroperitoneal surgery and venous interventional radiology. We report a case of duplicated IVC, which was observed during routine dissection of an 84-year-old Japanese female cadaver. The interiliac vein between the duplicated IVC ran obliquely upwards from left to right. We performed systematic literature review of published reports based on Pubmed and Medline from 1967 to 2011. Of 109 cases with IVC anomalies identified by the literature search, 22 cases (20.2%) displayed no interiliac anastomosis. The interiliac vein connecting duplicated IVC existed in 74 cases (67.9%). According to the running direction of the interiliac vein, we found that the vein ran from left to right in 42 cases, coursed from right to left in 19 cases, and ran horizontally in 13 cases. Thirteen left IVC displayed symmetrical-to-normal connection with the bilateral common iliac veins. Awareness of these venous variations is necessary to reduce surgical risk and to determine strategy in interventional radiology.
下腔静脉（IVC）重复是一种罕见但已被充分认识的异常情况。重复的下腔静脉与腹膜后手术和静脉介入放射学密切相关。我们报告一例在对一名84岁日本女性尸体进行常规解剖时发现的下腔静脉重复病例。重复的下腔静脉之间的髂间静脉从左向右斜向上走行。我们基于1967年至2011年的PubMed和Medline对已发表的报告进行了系统的文献综述。在文献检索中确定的109例下腔静脉异常病例中，22例（20.2%）未显示髂间吻合。连接重复下腔静脉的髂间静脉存在于74例（67.9%）中。根据髂间静脉的走行方向，我们发现该静脉从左向右走行的有42例，从右向左走行的有19例，水平走行的有13例。13例左侧下腔静脉与双侧髂总静脉呈对称至正常连接。了解这些静脉变异对于降低手术风险和确定介入放射学策略是必要的。
