Can any one please explain what are the differences between adult infective endocarditis and pediatric infective endocarditis ?

They are similar: Both are life-threatening conditions that involve bacteria growing on the valves of the heart. Bacteria from the body or from tics can cause overwhelming illness, or destroy the electrical system of the heart. Because adults tend to have stiffer hearts with more calcium deposits, surgery is more often needed to cure the illness. Either way, long courses of intravenous antibiotics are needed.