Some variations of the IVC are the left IVC, which happens when the left renal vein joins the left IVC but then crosses in front of the aorta before going into the right atrium if the heart. Left IVC has a prevalence rate of 0. Another common variation is a duplicate or double IVC. Its prevalence rate is typically 0. Other variations may include azygous continuation of the IVC, where blood coming from the lower body drains into a different venous system called the azygous system.
This system drains the thoracic wall and upper lumbar area of blood. This results in the partial or complete absence of the IVC, likely due to another variation of the veins which merge into the IVC.
The primary function of the IVC is to carry deoxygenated blood that has circulated through the lower half of the body back to the right atrium of the heart. The IVC is responsible for moving all of the blood below the diaphragm , while the superior vena cava handles the blood above the diaphragm.
The IVC is most commonly used for IVC filter placement, which can help reduce the risk of pulmonary embolisms a blockage in the lung which can prevent blood flow. An IVC filter stops blood clots that form in the veins of the lower half of the body, or someone who suffers from deep vein thrombosis , from having those clots reach the lungs. Depending on the severity and frequency of the blood clots, IVC filters can be left in permanently or removed once the risk of clots forming and traveling to the lungs has passed.
Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Various congenital anomalies of the inferior vena cava: review of cross-sectional imaging findings and report of a new variant.
Abdom Radiol NY. Petik B. Inferior vena cava anomalies and variations: imaging and rare clinical findings. Insights Imaging. Int J Organ Transplant Med. J Invasive Cardiol. Inferior vena cava filter-associated abnormalities: MDCT findings.
Inferior vena cava filter thrombosis. Clin Case Rep. Inferior Vena Cava. Innerbody website. Updated December Kenhub GmbH website. Updated April Tucker, William D. Burns, Bracken.
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