inferior vena cava

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Related to inferior vena cava: tricuspid valve, carotid artery, abdominal aorta, aorta, pulmonary artery, pulmonary valve, pulmonary vein, portal vein


 [ve´nah] (pl. ve´nae) (L.)
vein (see also Appendix 2-6).
vena ca´va the inferior vena cava and superior vena cava considered as a unit. See Appendix 2-6.
inferior vena cava the venous trunk for the lower extremities and the pelvic and abdominal viscera; it empties into the right atrium of the heart. See Appendix 2-6.
superior vena cava the venous trunk draining blood from the head, neck, upper extremities, and chest; it empties into the right atrium of the heart. See Appendix 2-6.

inferior vena cava

the large vein that returns deoxygenated blood to the heart from parts of the body below the diaphragm. It is formed by the junction of the two common iliac veins to the right of the fifth lumbar vertebra and ascends along the vertebral column, pierces the diaphragm, and opens into the right atrium of the heart. As it passes through the diaphragm, it receives a covering of serous pericardium. The inferior vena cava contains a semilunar valve that is rudimentary in the adult but very large and important in the fetus. The vessel receives blood from the two common iliacs, the lumbar veins, and the testicular veins. Compare superior vena cava.
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Inferior vena cava and its tributaries

in·fer·i·or ve·na ca·va

(IVC) (in-fēr'ē-ŏr vē'nă kā'vă)
Receives the blood from the lower limbs and the greater part of the pelvic and abdominal organs; it begins at the level of the fifth lumbar vertebra on the right side by the merger of the right and left common iliac veins, pierces the diaphragm at the level of the eighth thoracic vertebra, and empties into the posteroinferior aspect of the right atrium of the heart.
Synonym(s): postcava.

inferior vena cava

The largest vein in the body, carrying blood from the lower half of the body to the right atrium of the heart. See also SUPERIOR VENA CAVA.

Inferior vena cava

The biggest vein in the body, returning blood to the heart from the lower half of the body.


situated nearer plantar skin, in relation to reference structure
References in periodicals archive ?
Absence of the infrarenal inferior vena cava with preservation of the suprarenal segment as revealed by CT and MR venography.
3,5) This was especially true in the currently reported case in which impaired cardiac filling with dilatation of the inferior and superior vena cava and early reflux of contrast medium into dilated inferior vena cava and hepatic veins were seen but the pericardial thickness was within the upper limits of normal.
Secondary BCS results from obstruction of the hepatic veins or the inferior vena cava by thrombus or tumor.
Arterial phase scan demonstrates enhancement of the tumour in the inferior vena cava and of the tumour extension into the right hepatic vein (red arrow).
2) Conversion to oral anticoagulation is not usually recommended unless there are pulmonary emboli or extensions of clot into the iliac veins or the inferior vena cava.
12, 2014 /PRNewswire-USNewswire/ -- The first large-scale, multispecialty prospective clinical research trial to evaluate the use of inferior vena cava (IVC) filters and related follow-up treatment in the United States-initiated by a collaboration between the Society of Interventional Radiology (SIR) and the Society for Vascular Surgery (SVS)-is set to enroll the first patient in spring 2015 with participation from seven filter manufacturers.
Surgical strategy for treating renal cell carcinoma with thrombus extending into the inferior vena cava.
Inferior vena cava filters are usually endothelialized after 3 weeks of device deployment Crossing IVC filters after three or more weeks is thus relatively safe if a careful technique is utilized (9).
The CT scan that was acquired 70 seconds after the start of IV contrast administration showed a contrast agent deposit with a blood-contrast level in the dependent portion of the superior vena cava (Figure 1A) and the inferior vena cava (Figure 1B), dense opacification of the right portal and right hepatic veins (Figure 1C), contrast material pooling in the right renal parenchyma (Figure 1D), and a nonenhanced small abdominal aorta (Figure 1B, C, and D).
The bullet lodged and moved freely within the inferior vena cava and its branches, but the patient had no symptoms.
Food and Drug Administration (FDA) clearance for its novel inferior vena cava filter (VCF) with bi-directional retrieval.

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