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  • Arteries
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  • Cardio Terms
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• Cardio Terms

- V -

• V fib

Ventricular fibrillation.



• V tach

Ventricular tachycardia.



• VAD

Ventricular assist device; a blood propulsion devices or eccs to assist the failing right or left ventricles.



• Vagus Nerve

Either of the longest pair of cranial nerves that control the pharynx, larynx, lungs, heart, esophagus, stomach, including thoracic and abdominal viscera.



• Valvuloplasty

Surgical repair of a cardiac valve.



• Valvulotomy

To make an incision into a diseased and stenosed cardiac valve to increase the valve area.



• Variant angina

Prinzmetal's angina, a clinical syndrome of rest pain and reversible st-segment elevation without subsequent enzyme evidence of acute mi. In some patients, the cause of this syndrome appears to be coronary vasospasm alone often at the site of an insignificant coronary plaque, but a majority of patients with variant angina have angiographically significant cad.



• Vasa vasorum

The small blood vessels providing nutrient blood flow to large arteries and veins.



• Vascular

Pertaining to blood vessels or indicative of a copious blood supply.



• Vasoconstrict

The arterioles decrease in diameter restricting blood flow to an organ or portion of the body.



• Vasodilate

The arterioles increase in diameter allowing more blood flow.



• Vein

A blood vessel that carries blood toward the heart; veins usually carry deoxygenated blood.



• Veins

Blood vessels that carry blood away from an organ, as opposed to arteries which carry blood toward an organ. Examples of organs are the kidneys, the liver, the brain and the heart. Within the organ, oxygen and nutrients are extracted and carbon dioxide (CO2) is added to the blood. The exceptions are pulmonary veins, which transport newly oxygenated blood from the lungs to the left heart. With this exception, the un-oxygenated blood in the veins eventually flows back to the right side of the heart, which then pumps this blood to the lungs where the CO2 is removed and oxygen is added. The newly oxygenated blood is then transported by the pulmonary veins to the left heart, where it is pumped back out to the body.



• Vena cava

The large vein(s) collecting the venous return from the head, neck and shoulders (superior vena cava) and the legs and gut (inferior vena cava) draining into the right atrium of the heart.



• Ventilation

The movement of gas in and out of the lungs to facilitate blood oxygenation and carbon dioxide removal.



• Ventricle

A small cavity or chamber, as in the brain or heart.



• Ventricular Fibrillation

A condition in which the purposeful, forceful, and rhythmic contraction of the ventricle is lost. Ventricular fibrillation is one of several conditions known as 'arrhythmias'. With ventricular fibrillation, the heart muscle has no purposeful contractile motion, which results in a loss of the pumping action of the heart. Ventricular fibrillation is fatal if not quickly treated. Ventricular fibrillation can be treated with medications, or through an electrical shock known as a defibrillation.



• Ventriculography

A procedure for visualization of ventricles of the heart by x-ray after injection of a radio opaque contrast dye.



• Von Willebrand Disease

Coagulation disorder caused by lack of or non functional von willebrand factor.



• VSD

Ventricular septal defect.



• VWF

Von willebrand factor.