Infective Endocarditis
An infection of the heart valves and the innermost lining of the heart (the endocardium), caused by bacteria in the bloodstream
Cardiac
Inferior Vena Cava [IVC]
The main vein from the lower part of the body which returns deoxygenated blood to the heart.
Innocent Murmur
A murmur heard in healthy children, which does not signify any underlying heart disease or defect. These soft heart murmurs are very common and are of no significance.