Staphylococcus lugdunensis as Cause of Septic Pericarditis.

Staphylococcus lugdunensis (S. lugdunensis) is a coagulase-negative gram-positive bacterium, considered part of skin flora, which can simultaneously cause human diseases. S. lugdunensis has been reported in the literature as one of the causative agents for infective endocarditis.1 Although one of the coagulasenegative staphylococci, S. lugdunensis shares many virulent characteristics with Staphylococcus aureus (S. aureus), including biofilm formation. It has been associated with various foreign body-related infections such as prosthetic joint infections,2 in addition to bacteremia, osteomyelitis, septic arthritis, central nervous system, urinary tract infections, peritonitis, infective endocarditis and others. Given the association with severe and aggressive infections, it is important to treat S. lugdunensis as true infection rather than a contaminant, particularly in a suspect clinical context.3-6 Currently, there are no reported cases in the literature on pericarditis secondary to S. lugdunensis. We present a case of a 69-year-old woman with pericarditis, sepsis and disseminated intravascular coagulopathy (DIC) due to S. lugdunensis. Copyright 2021 by the Missouri State Medical Association.