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Minor compression of the inferior vena cava during pregnancy is a relatively common occurrence. It is seen most commonly when women lie on their back or right side. [4] 90% of women lying in the supine position during pregnancy experience some form of inferior vena cava syndrome; however, not all of the women display symptoms. [4]
Aortocaval compression syndrome, also known as supine hypotensive syndrome, is compression of the abdominal aorta and inferior vena cava by the gravid uterus when a pregnant woman lies on her back, i.e. in the supine position.
Because of its similarities to deep vein thrombosis (DVT), May–Thurner syndrome is rarely diagnosed amongst the general population. In this condition, the right iliac artery sequesters and compresses the left common iliac vein against the lumbar section of the spine, [5] resulting in swelling of the legs and ankles, pain, tingling, and/or numbness in the legs and feet. [6]
Compression of the inferior vena cava (IVC) [23] and pelvic veins by the uterus leads to increased hydrostatic pressure in the vasculature of the lower extremities. This increase in pressure shunts fluid from within the vasculature to the extracellular space.
Chronic venous insufficiency caused by DVT may be described as postthrombotic syndrome. DVT triggers an inflammatory response subsequently injuring the vein wall. [6] Superficial vein thrombosis. Phlebitis; May–Thurner syndrome. This is a rare condition in which blood clots occur in the iliofemoral vein due to compression of the blood vessels ...
Pelvic Congestion Syndrome, vaginal and vulval varices, lower limb varices are clinical sequelae. Virtually all such patient are female and have been pregnant, often multiply. [citation needed] The ovarian vein often displays incompetent valves. This has been observed more often in women with a higher number of previous pregnancies. Pressure ...
Problems with the innominate vein and superior vena cava have also been reported to contribute to CCSVI. [27] A vascular component in MS had been cited previously. [28] [29] Several characteristics of venous diseases make it difficult to include MS in this group. [14] In its current form, CCSVI cannot explain some of the epidemiological ...
The inferior vena cava is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart. It is formed by the joining of the right and the left common iliac veins , usually at the level of the fifth lumbar vertebra .