Prosthetic valve endocarditis due to coagulase-negative staphylococci: findings from the International Collaboration on Endocarditis Merged Database.

Journal Article (Journal Article)

Infective endocarditis due to coagulase-negative staphylococci is increasingly recognized as a difficult-to-treat disease associated with poor outcome. The aim of this report is to describe the characteristics and outcome of patients with prosthetic valve endocarditis (PVE) due to coagulase-negative staphylococci versus those of patients with PVE due to Staphylococcus aureus and viridans streptococci. Patients were identified through the International Collaboration on Endocarditis Merged Database. A total of 54 cases of coagulase-negative staphylococci PVE, 58 cases of S. aureus PVE, and 63 cases of viridans-streptococci-related PVE were available for analysis. There was no difference between the three groups with respect to the type of valve involved or the rate of embolization. However, heart failure was encountered more frequently with coagulase-negative staphylococci (54%) than with either S. aureus (33%; p=0.03) or viridans streptococci (32%; p=0.02). In addition, valvular abscesses complicated 39% of infections due to coagulase-negative staphylococci compared with 22% of those due to S. aureus (p=0.06) and 6% of those due to viridans streptococci (p<0.001). Mortality was highest in patients with S. aureus and coagulase-negative staphylococcal endocarditis (47 and 36%, respectively; p=0.22) and was considerably lower in patients with viridans streptococcal endocarditis (p=0.002 compared to patients with coagulase-negative staphylococcal endocarditis). The results of this analysis demonstrate the aggressive nature of coagulase-negative staphylococcal PVE and the substantially greater morbidity and mortality associated with this infection compared to PVE caused by other pathogens.

Full Text

Duke Authors

Cited Authors

  • Lalani, T; Kanafani, ZA; Chu, VH; Moore, L; Corey, GR; Pappas, P; Woods, CW; Cabell, CH; Hoen, B; Selton-Suty, C; Doco-Lecompte, T; Chirouze, C; Raoult, D; Miro, JM; Mestres, CA; Olaison, L; Eykyn, S; Abrutyn, E; Fowler, VG; International Collaboration on Endocarditis Merged Database Study Group,

Published Date

  • June 2006

Published In

Volume / Issue

  • 25 / 6

Start / End Page

  • 365 - 368

PubMed ID

  • 16767483

International Standard Serial Number (ISSN)

  • 0934-9723

Digital Object Identifier (DOI)

  • 10.1007/s10096-006-0141-z


  • eng

Conference Location

  • Germany