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Vena Cava

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Vena Cava
Definition: Major vein in your body, that after 16 weeks the weight of the uterus can restrict blood flow if you lay on your back.
Related Resources: Sleep Like A Baby
Finding safe and comfortable positions for sleep in pregnancy.


Inferior vena cava filter use in pregnancy: preliminary experience.
Gupta S, Ettles DF, Robinson GJ, Lindow SW ...

Vena cava - Major vein in the body that empties into the right atrium of the heart. It returns unoxygenated blood to the heart for transport to the lungs.
Venereal warts - See condyloma acuminatum.

Inferior vena cava: The vein responsible for returning blood from the lower body to the heart. Lying faceup during pregnancy can compress the inferior vena cava.
Infertility: The inability to conceive or carry a child to term.

On your back: While this is the most commonly used position because it allows your provider optimal space to apply delivery maneuvers, it may also cause your uterus to press against the inferior vena cava blood vessel, decreasing the placenta blood supply.

Caused by compression of the inferior ~ (IVC) and pelvic veins by the uterus leads to increased hydrostatic pressure in lower extremities.
Regurgitation, heartburn and nausea.

your aorta and inferior ~. These two provide blood to your heart AND more importantly to your baby's placenta, e.i. to Baby itself. That being said. From experience and from my doctor, your body will tell you what's going on.

At home, try to lie down on your left side, as this takes pressure off the inferior ~.
Try not to stand for long periods of time (NHS Choices 2012). At work, you should be able to take regular breaks if you have a job where you're on your feet.

Lie down or sleep on your left side, to take the pressure off your inferior ~. Put your feet on a pillow and wedge another pillow behind your back.
Don't sit or stand for long periods of time. Move around at least once every 30 minutes.

Sleep on the left to try and take some strain off the inferior ~ vein
Keep legs elevated as much as possible, do pelvic floor exercises and move and change positions continually throughout the day to encourage good circulation and take pressure off the inferior ~ vein ...

In later pregnancy, you may feel dizzy if you lie flat on your back and the weight of the uterus presses on your ~ (the large vein that carries blood from your lower body back to your heart).

Your aorta and ~ are slightly to the right of the center of your back, so laying/sleeping on your left side as much as possible ensures an unobstructed blood flow to your organs and extremities. You may be having some trouble sleeping now.

When a pregnant woman lies flat on her back, the enlarged uterus may press on the ~. The ~ is a large vein that returns oxygen depleted blood to the heart.

RESULTS: Echocardiography revealed that UVCs were located ideally at the right atrial/inferior ~ junction in only 12 (23%) of 53 patients. Twenty-four (45%) were incorrectly positioned in the left atrium.

Wanneer jy op jou rug slaap, kan die druk op jou liggaam 'n baie belangrike aar, die inferior ~, toedruk. Hierdie aar bring bloed van jou bene terug na jou hart toe en as dit toegedruk word, beteken dit die bloedsomloop na jou baarmoeder en dus die fetus word beperk.

The enlarged uterus places extra pressure on the large vein (inferior ~) that drains the veins of the large intestine.
Constipation, a common problem during pregnancy, causes less frequent and more strained bowel movements. The bowels commonly move more slowly during pregnancy.

You can help to relieve pressure on your inferior ~ (the major vein that runs down your right-hand side) by lying on your left from now on in pregnancy. This helps to encourage better circulation both for you and your baby.

Lying on your back cuts off blood supply by compressing the inferior ~. Strong circulation and blood supply help in the development of your fetus in the womb. While sleeping on your right side is unlikely to directly affect the baby, it can put added pressure on the liver.

As your uterus gets larger and larger, it begins to put pressure on both pelvic veins and the ~.This causes your increased circulation to hit an orange light, so to speak, and start slowing down.

Lying flat on the back compresses the large blood vessel (~) leading from the lower body to the heart, decreasing blood flow to and from the heart. This leads to a sudden and dramatic decline in blood pressure-and possibly dizziness or loss of consciousness.

Experts believe that this occurs because your back is forced to support the considerable weight of your uterus, intestines and the inferior ~. Sleeping on your back also tends to crush a major vein, the ~ and is therefore best avoided.

- Pregnant women should sleep on their left side so as to avoid obstructing the ~. ~ is the vein that control blood circulation from lower part of the body to the heart.

- Compression of the inferior ~ and aorta by the uterus, which is very large at this stage of pregnancy. The pain occurs when lying on your back.

"If you sleep on your back, the enlarged uterus presses against the inferior ~, the vein that returns blood from the lower body to the heart," Stucky explains.

Changes in blood chemistry cause some fluid to shift into your tissues, and by the third trimester, the weight of your uterus puts so much pressure on your pelvic veins and the ~ (the large vein on the right side of your body that carries blood from your legs and feet back up to your heart), ...

Sleeping on your back: This can cause problems with backaches, breathing, digestive system, hemorrhoids, low blood pressure and decrease in circulation to your heart and your baby. This is a result of your abdomen resting on your intestines and major blood vessels (the aorta and ~).

The pressure may also cause fluid to leak out of the veins and into the tissues, causing swelling of the feet and ankles. Late in pregnancy, the uterus can also compress a major vein in the abdomen, the ~, when you lie on your back; if this occurs, ...

See also: See also: What is the meaning of Pregnancy, Pregnant, Uterus, During pregnancy, Blood pressure?

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