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下腔静脉血栓形成(inferior vena cava thrombosis,IVCT)是指各种原因引起的下腔静脉内血液异常凝结的一种少见病。临床多在下腔静脉狭窄或闭塞基础上发生,或由下肢深静脉血栓(deep venous thrombosis,DVT)向上蔓延而形成,造成双下肢、盆腔、甚至肾、肝静脉血液回流受阻,出现相应区域组织器官淤血水肿、侧支循环代偿增粗等表现,一旦血栓脱落可造成致命性肺栓塞。IVCT、是目前公认的具有显著的短期和长期发病率和死亡率的疾病之一~([1])。
Inferior vena cava thrombosis (IVCT) is a rare cause of abnormal blood coagulation in the IVC caused by various causes. Clinically based on the clinical occurrence of stenosis or occlusion of the inferior vena cava, or by the lower extremity deep venous thrombosis (DVT) to spread upward, resulting in bilateral lower extremities, pelvic, and even renal, hepatic venous blood backflow blocked, the corresponding regional tissue organs Congestion edema, collateral circulation compensatory thickening performance, once the thrombus shedding can cause fatal pulmonary embolism. IVCT is currently recognized as one of the most prominent short-term and long-term morbidity and mortality diseases ([1]).