Ruggeri M, Tosetto A, Castaman G, Rodeghiero F
Lancet. 2001 Feb 10;357(9254):441. doi: 10.1016/S0140-6736(00)04010-1.
Congenital absence of the inferior vena cava (AIVC) is a rare vascular defect, commonly reported as a fortuitous finding. The presence of AIVC in patients with DVT is underestimated because AIVC cannot be detected by compression B-mode ultrasonography. By use of computed tomography, we diagnosed four cases of AIVC in young patients with idiopathic DVT over a 5 year period. Based on the occurrence of DVT in patients below 30 years in our area during the same period, we estimate that AIVC is present in about 5% of cases of DVT in young patients. Computed tomography or angiography should be used for the diagnosis of idiopathic DVT in young patients.
先天性下腔静脉缺如（AIVC）是一种罕见的血管缺陷，通常作为偶然发现被报道。深静脉血栓形成（DVT）患者中AIVC的存在被低估了，因为压迫式B型超声检查无法检测到AIVC。通过计算机断层扫描，我们在5年期间诊断出4例年轻特发性DVT患者存在AIVC。根据同一时期我们所在地区30岁以下患者DVT的发生率，我们估计年轻患者DVT病例中约5%存在AIVC。计算机断层扫描或血管造影应用于年轻特发性DVT患者的诊断。
