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November 21, 2009
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Endocarditis

Revising Medical Author: Daniel Kulick, MD, FACC, FSCAI
Revising Medical Editor: Melissa Conrad Stöppler, MD

What is endocarditis?

Endocarditis is a serious infection of one of the four heart valves.

What causes endocarditis?

Endocarditis is caused by a growth of bacteria on one of the heart valves, leading to an infected mass called a "vegetation". The infection may be introduced during brief periods of having bacteria in the bloodstream, such as after dental work, colonoscopy, and other similar procedures.



Next: What are the symptoms of endocarditis? »

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Endocarditis

What is edema?

Edema is observable swelling from fluid accumulation in body tissues. Edema most commonly occurs in the feet and legs, where it is referred to as peripheral edema. The swelling is the result of the accumulation of excess fluid under the skin in the spaces within the tissues. All tissues of the body are made up of cells and connective tissues that hold the cells together. This connective tissue around the cells and blood vessels is known as the interstitium. Most of the body's fluids that are found outside of the cells are normally stored in two spaces; the blood vessels (as the "liquid" or serum portion of your blood) and the interstitial spaces (not within the cells). In various diseases, excess fluid can accumulate in either one or both of these compartments.

The body's organs have interstitial spaces where fluid can accumulate. An accumulation of fluid in the interstitial air spaces (alveoli) in the lungs occurs in a disorder called...

Read the Edema article »










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