STAPHYLOCOCCI. S. aureus is a common cause of bacterial endocarditis in patients with prosthetic valves and in injection drug users. This organism is also the most common cause of acute bacterial endocarditis in patients with previously normal cardiac valves.

Does Staph aureus cause endocarditis?

Staphylococcus aureus is the leading cause of infectious endocarditis and its mortality has remained high despite better diagnostic and therapeutic procedures over time.

What is the most common cause of endocarditis?

Endocarditis is usually caused by an infection. Bacteria, fungi or other germs from another part of your body, such as your mouth, spread through your bloodstream and attach to damaged areas in your heart. If it's not treated quickly, endocarditis can damage or destroy your heart valves.