vena cava inferior

下大静脈

関

inferior vena cava、postcaval vein

WordNet

1. of or characteristic of low rank or importance
2. one of lesser rank or station or quality
3. having an orbit between the sun and the Earths orbit; "Mercury and Venus are inferior planets"
4. lower than a given reference point; "inferior alveolar artery"
5. of low or inferior quality

PrepTutorEJDIC

1. (階級・親分・質・程度などが)『下の』,『劣る』, / (位置が)低い,下方の / 目下の者;劣った人
2. circa

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/10/17 15:43:38」(JST)

wiki en

[Wiki en表示]

Vein: Inferior vena cava
Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow.
Superior vena cava, inferior vena cava, azygos vein and their tributaries.
Latin	vena cava inferior
Gray's	subject #173 677
Source	common iliac vein lumbar veins testicular vein renal vein suprarenal vein hepatic vein
Drains to	heart
Artery	abdominal aorta
MeSH	Vena+Cava,+Inferior

The inferior vena cava (or IVC), also known as the posterior vena cava, is the large vein that carries de-oxygenated blood from the lower half of the body into the right atrium of the heart.

It is posterior to the abdominal cavity and runs alongside of the vertebral column on its right side (i.e. it is a retroperitoneal structure). It enters the right atrium at the lower right, back side of the heart.

Drainage patterns

The IVC is formed by the joining of the left and right common iliac veins and brings blood into the right atrium of the heart. It also anastomoses with the azygos vein system (which runs on the right side of the vertebral column) and venous plexuses next to the spinal cord.

The caval opening is at T8. The specific levels of the tributaries are as follows:

Vein	Level
hepatic veins	T8
inferior phrenic vein	T8
suprarenal vein	L1
renal veins	L1
gonadal vein	L2
lumbar veins	L1-L5
common iliac veins	L5

Because the IVC is not centrally located, there are some asymmetries in drainage patterns. The gonadal veins and suprarenal veins drain into the IVC on the right side, but into the renal vein on the left side, which in turn drains into the IVC. By contrast, all the lumbar veins and hepatic veins usually drain directly into the IVC.

The tributaries of Inferior vena cava can be remembered using the mnemonic, "I Like To Rise So High", for Illiac vein (common), Lumbar vein, Testicular vein, Renal vein, Suprarenal vein and Hepatic vein.

Note that the vein that carries de-oxygenated blood from the upper half of the body is the superior vena cava.

Pathologies associated with the IVC

Health problems attributed to the IVC are most often associated with it being compressed (ruptures are rare because it has a low intraluminal pressure). Typical sources of external pressure are an enlarged aorta (abdominal aortic aneurysm), the gravid uterus (aortocaval compression syndrome) and abdominal maligancies, such as colorectal cancer, renal cell carcinoma and ovarian cancer. Since the inferior vena cava is primarily a right-sided structure, unconscious pregnant females should be turned on to their left side (the recovery position), to relieve pressure on it and facilitate venous return. In rare cases, straining associated with defecation can lead to restricted blood flow through the IVC and result in syncope (fainting).

Occlusion of the IVC is rare, but considered life-threatening and is an emergency. It is associated with deep vein thrombosis, IVC filters, liver transplantation and instrumentation (e.g. catheter in the femoral vein).

Embryology

In the embryo, the IVC and right atrium are separated by the Eustachian valve, also known in Latin as the valvula venae cavae inferioris (valve of the inferior vena cava). In the adult, this structure typically has totally regressed or remains as a small endocardial fold.

Additional images

• Diagram showing completion of development of the parietal veins.

• Base and diaphragmatic surface of heart.

• The arch of the aorta, and its branches.

• The abdominal aorta and its branches.

• Inferior vena cava

• The position and relation of the esophagus in the cervical region and in the posterior mediastinum. Seen from behind.

• Transverse section of human embryo eight and a half to nine weeks old.

• Human kidneys viewed from behind with spine removed

• Liver and gallbladder

• Inferior vena cava

• Inferior vena cava

• Inferior vena cava

• Inferior vena cava

• Inferior vena cava

• Inferior vena cava

See also

• Inferior vena cava filter
• Inferior vena cava syndrome
• Recovery position
• Superior vena cava

References

External links

• synd/1462 at Who Named It? - "Eustachian valve"
• SUNY Labs 40:13-0101 - "Posterior Abdominal Wall: Tributaries to the Inferior Vena Cava"
• SUNY Anatomy Image 8827
• Cross section at UV pembody/body12a

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

• 1. 下大静脈​フィルター​留置​とその​合併症​ placement of inferior vena cava filters and their complications
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English Journal

• Are catecholamine-derived indexes in adrenal venous sampling useful for judging selectivity and laterality in patients with primary aldosteronism?

• Baba Y, Hayashi S, Nakajo M.SourceDepartment of Radiology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima-shi, Kagoshima, 890-8520, Japan, yasutaka@m3.kufm.kagoshima-u.ac.jp.
• Endocrine.Endocrine.2013 Jun;43(3):611-7. doi: 10.1007/s12020-012-9793-x. Epub 2012 Sep 19.
• In order to investigate retrospectively whether catecholamine concentrations obtained by adrenal venous sampling (AVS) are useful for lateralization of the aldosteronoma-bearing adrenal gland. The study population comprised 35 patients (10 men, 25 women; mean age, 49.8 years) with aldosteronoma and
• PMID 22990404

• A Novel Technique for Inferior Vena Cava Filter Extraction.

• Johnston EW, Rowe LM, Brookes J, Raja J, Hague J.SourceMultidisciplinary Endovascular Team, University College Hospital, 235 Euston Road, London, NW1 2BU, UK, ed.johnston@doctors.org.uk.
• Cardiovascular and interventional radiology.Cardiovasc Intervent Radiol.2013 May 2. [Epub ahead of print]
• Inferior vena cava (IVC) filters are used to protect against pulmonary embolism in high-risk patients. Whilst the insertion of retrievable IVC filters is gaining popularity, a proportion of such devices cannot be removed using standard techniques. We describe a novel approach for IVC filter removal
• PMID 23636251

Japanese Journal

• 後腹膜鏡下摘除により診断しえた胃癌後腹膜リンパ節転移の1例

• 中澤 成晃,奥見 雅由,米田 傑
• 泌尿器科紀要 = Acta urologica Japonica 58(12), 683-686, 2012-12
• … However, computed tomography revealed a retroperitoneal tumor adjacent to the inferior vena cava, which gradually increased and began to compress the inferior vena cava. …
• NAID 40019530642

• 学術委員会報告 CCUでの肺塞栓症例における下大静脈フィルターの現況 : 東京都CCUネットワークより (報告集 第31回 東京CCU研究会)

• 田辺 康宏,尾林 徹,山本 剛
• ICUとCCU : 集中治療医学 36(10), 897-902, 2012-10
• NAID 40019526217

Related Links

• vena cava, inferior - definition of vena cava, inferior in the ...

ve·na ca·va, inferior (IVC), [TA] vein that 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 ...

• inferior vena cava - definition of inferior vena cava in the ...

inferior vena cava n. Abbr. IVC A large vein formed by the union of the two common iliac veins that receives blood from the lower limbs and the pelvic and abdominal viscera and empties into the right atrium of the heart. Also called postcava

Related Pictures

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★リンクテーブル★

リンク元	「下大静脈」「postcaval vein」
関連記事	「inferior」「inferio」「cava」「vena cava」「vena」

「下大静脈」

　　[★]

英

inferior vena cava (Z), IVC

ラ

vena cava inferior

枝 (KL.409)

1. 腰静脈
2. 精巣静脈・卵巣静脈
3. 腎静脈
4. 肝静脈
5. 下横隔静脈

臨床関連

• エコーによる下大静脈の拡大　→　静脈血のうっ滞

参考1

右房圧	下大静脈径	呼吸性変動
5mmHg	≦18mm	あり
10mmHg	≧18mm	あり
15mmHg		なし

参考

• 1.

http://www.us-kensahou-seminar.net/muse4/ch2/sub5/index.html

Henry Gray (1825-1861). Anatomy of the Human Body. 1918.
Henry Gray (1825-1861). Anatomy of the Human Body. 1918.

「postcaval vein」

　　[★]

下大静脈

関

inferior vena cava、vena cava inferior

「inferior」

　　[★]

• adj.

• 下位の、下方の、劣る、劣性の

関

inferio、inferiorly、infra、lower、recessive、recessively、recessiveness

　 　 　 　 　 　

「inferio」

　　[★]

• comb form.

• 下位の、下

関

inferior、inferiorly、infra、lower、sub、underneath

「cava」

　　[★]

大静脈

関

caval、vena cava、venae cavae

「vena cava」

　　[★]

• 大静脈

関

cava、caval、venae cavae

「vena」

　　[★]

静脈

関

vein、venous