superior vena cava


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vena

 [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.

superior vena cava

the second largest vein of the body, returning deoxygenated blood from the upper half of the body to the right atrium. It is about 2 cm in diameter and 7 cm long. The section of the superior vena cava closest to the heart composes about one half of the vessel's length and is within the pericardial sac, covered by the serous pericardium. It has no valves. Compare inferior vena cava.

su·pe·ri·or ve·na ca·va

(sŭ-pēr'ē-ŏr vē'nă kā'vă)
Returns blood from the head and neck, upper limbs, and thorax to the posterosuperior aspect of the right atrium; formed in the superior mediastinum by union of the two brachiocephalic veins.
Synonym(s): vena cava superior [TA] , precava.

superior vena cava

The final venous channel that returns blood from the head, shoulders, upper limbs and thoracic structures other than the lungs to the upper chamber (atrium) of the right side of the heart.

Superior vena cava

The major vein that carries blood from the upper body to the heart.
Mentioned in: Superior Vena Cava Syndrome

vena cava

vein trunks carrying deoxygenated blood from the body to the right atrium

  • inferior vena cava receiving blood from deep veins of legs and pelvis

  • superior vena cava receiving blood from head, neck, upper limbs and thorax

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References in periodicals archive ?
Low Superior Vena Cava Flow and Intraventricular Haemorrhage in Preterm Infants.
New Clinical Study Finds Masimo Perfusion Index (PI) Predicts Low Systemic Blood Flow in Preterm Infants
Superior vena cava (SVC) syndrome presenting as unilateral breast enlargement is rarely described.
Unilateral breast enlargement as a presenting feature of small cell carcinoma of the lung
Embolized air collection in the superior vena cava of "upright" sheep.
Further reason for maintaining a positive CVP during neurosurgery in the sitting position
Key Words: congenital anomaly, persistent left superior vena cava, pulmonary artery catheter
Persistent left superior vena cava: an intensivist's experience and review of the literature. (Case Report)
An electrical lead from the pump is tunneled up the chest, and its sensor, an electrode that detects glucose oxidase, is placed at the junction of the superior vena cava and the right atrium.
Artificial pancreas implanted in type 1 diabetics. (Functions well in Experiments)
Ash indicate that the Centros catheter provides highly acceptable flow rates at modest negative pressure without deterioration in flow rate over seven weeks of use, even with tips positioned in the superior vena cava rather than within the atrium.
AngioDynamics Launches Improved Centros[R] Self-Centering Hemodialysis Catheter
Insertion of these catheters follows the same principles of CVC insertion, with the right internal jugular vein being the preferred insertion site due to easier catheterization, a relatively straight path to the superior vena cava and right atrium, high rates of cannulation success, and low rates of central venous stenosis (3, 4).
Where is that hemodialysis catheter (superior vena cava or aorta)? A case of intraarterial catheter placement
The most common associated cardiac anomalies are atrial septal defect, persistent left superior vena cava and mitral regurgitation.
Three-dimensional echocardiography in the evaluation of cor triatriatum sinistrum in an adult patient with atrial septal defect/Atriyal septal defektli yetiskin bir hastada kor triatriatum sinistrumun degerlendirilmesinde uc boyutlu ekokardiyografi
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).
Radiological case of the month: Maria Jose Bello, MD, Esther Rodriguez, MD, and Alejandro Manuel Diaz, MD
Key Words: balloon occlusion, basket, brachiocephalic, bullet, embolization, inferior vena cava, migration, percutaneous, superior vena cava, venotomy
Bullet migration within the inferior vena cava. (Case Report)
9,20] One case of IPEH in the superior vena cava that caused obstructive symptoms has also been reported.
Intravascular papillary endothelial hyperplasia (Masson's tumor) manifesting as a lateral neck mass
The patient's Superior Vena Cava, and right and left subclavian veins were occluded with blood clot.
Possis AngioJet System Use by Stanford Medical Center Produces Dramatic Results

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