Cheng Danny, Zangan Steven M
Department of Radiology, University of Chicago Medical Center, Chicago, Illinois, USA.
J Vasc Access. 2010 Apr-Jun;11(2):162-4. doi: 10.1177/112972981001100215.
Given the complex embryogenesis of the inferior vena cava (IVC), anatomic variations are commonly encountered. Duplication of the IVC occurs in up to 2.8% of the population. Though asymptomatic, a duplicated IVC has important clinical implications when attempting caval filtration. We present the case of a 45- year-old male with factor V leiden and protein C deficiency, who required cessation of warfarin anticoagulation in preparation for cervical laminectomy. The patient had a duplicated IVC and required placement of a caval filter in each IVC.
鉴于下腔静脉（IVC）复杂的胚胎发育过程，解剖变异很常见。下腔静脉重复畸形在人群中的发生率高达2.8%。虽然通常无症状，但在尝试进行腔静脉滤过时，下腔静脉重复畸形具有重要的临床意义。我们报告一例45岁男性患者，患有因子V莱顿突变和蛋白C缺乏症，因准备进行颈椎椎板切除术需要停用华法林抗凝治疗。该患者存在下腔静脉重复畸形，需要在每个下腔静脉中放置一个腔静脉滤器。
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