Acquired heart diseases develop after birth and can impact otherwise healthy hearts. Common examples include rheumatic heart disease, Kawasaki disease, and myocarditis. Rheumatic heart disease often follows untreated streptococcal infections, leading to inflammation and damage to the heart valves. Kawasaki disease involves inflammation of blood vessels and can result in coronary artery aneurysms. Myocarditis is an inflammation of the heart muscle usually caused by a viral infection.
