Native double-valve endocarditis by Mycobacterium fortuitum following percutaneous coronary intervention.

Infective endocarditis caused by atypical mycobacteria, especially Mycobacterium fortuitum, is rare. Most reported cases involve diseased valves or prosthetic heart valves. Only four cases of native valve endocarditis caused by this organism have been previously reported. Herein is reported a case of native valve endocarditis caused by M. fortuitum; the epidemiology and management of this rare cause of culture-negative endocarditis is discussed.