See below. Infective endocarditis is infection of one or more heart valves by a microorganism. Non-infective endocarditis is inflammation of a heart valve not caused by an infection. Nonbacterial thrombotic endocarditis is found in patients with malignancy, chronic wasting diseases, rheumatic and congenetal heart diseases and autoimmune diseases such as sle.
The cause. Endocarditis is damage to the heart valves. Infective endocarditis is caused by bugs such as staph aureas. Non infectious endocarditis can be caused by certain cancers, autoimmune, and rheumatologic sources.