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Canadian Journal of Infectious Diseases
Volume 9, Issue 4, Pages 240-242
Case Report

Right-Sided Endocarditis due to Staphylococcus lugdunensis: First Reported Case

CL Cooper,1,2 SH Choudhri,1,2 and RJ Hoeschen2

1Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada
2Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada

Received 22 September 1997; Accepted 9 February 1998

Copyright © 1998 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Staphylococcus lugdunensis is a coagulase-negative organism first identified in 1988. It is often incorrectly identified as Staphylococcus aureus, and has been isolated as the etiological agent in over 20 cases of left-sided endocarditis. This report describes the first documented case of right-sided endocarditis caused by S lugdunensis. This experience suggests that S lugdunensis can infect native valves in the absence of any predisposing risk factors such as injection drug use.