Isolated pulmonary valve endocarditis due to Pseudomonas aeruginosa.

Isolated endocarditis of the native pulmonary valve is a rare clinical condition. It usually appears in association with certain predisposing factors, particularly intravenous drug abuse, alcohol abuse, sepsis, endovascular infections or congenital heart disease. The authors describe the case of isolated pulmonary valve endocarditis due to Pseudomonas aeruginosa of possible nosocomial origin in the absence of the predisposing factors mentioned above. Native pulmonary valve infection due to Pseudomnzonas aeruginosa in the absence of predisposing factors has not been described in the literature. The authors stress the importance of diagnosing this entity as early as possible as it is associated with high mortality and is on the increase due to the growing number of invasive procedures applied to patients in the hospital environment.