Table 3.
Primary pathogens in patients with positive cultures
| Primary pathogens | RIE N = 110, n (%) |
LIE N = 274, n (%) |
BRLIE N = 29, n (%) |
|---|---|---|---|
| Staphylococcus aureus | 53 (48.2) | 101 (36.9) | 11 (37.9) |
| Methicillin susceptible | 39 (35.5) | 50 (18.2) | 7 (24.1) |
| Methicillin resistant | 11 (10.0) | 39 (14.2) | 3 (10.3) |
| Methicillin susceptibility unknown | 3 (2.7) | 12 (4.4) | 1 (3.4) |
| Coagulase-negative staphylococci | |||
| Staphylococcus epidermidis | 30 (27.3) | 49 (17.9) | 2 (6.9) |
| Methicillin susceptible | 5 (4.5) | 5 (1.8) | – |
| Methicillin resistant | 22 (20.0) | 37 (13.5) | 1 (3.4) |
| Methicillin susceptibility unknown | 3 (2.7) | 7 (2.6) | 1 (3.4) |
| Other | 13 (11.8) | 32 (11.7) | 6 (20.7) |
| Methicillin susceptible | 3 (2.7) | 5 (1.8) | 1 (3.4) |
| Methicillin resistant | 10 (9.1) | 25 (9.1) | 2 (6.9) |
| Methicillin susceptibility unknown | – | 2 (0.7) | 3 (10.3) |
| Staphylococcus species—coagulase not specified | 1 (0.9) | 2 (0.7) | – |
| Enterococcus faecium | – | 7 (2.6) | 1 (3.4) |
| Vancomycin susceptible | – | 3 (1.1) | – |
| Vancomycin resistant | – | 2 (0.7) | 1 (3.4) |
| Vancomycin susceptibility unknown | – | 2 (0.7) | – |
| Enterococcus faecalis | 6 (5.5) | 34 (12.4) | 3 (10.3) |
| Vancomycin susceptible | 5 (4.5) | 30 (10.9) | 2 (6.9) |
| Vancomycin susceptibility unknown | 1 (0.9) | 4 (1.5) | 1 (3.4) |
| Other Enterococcus species | – | 7 (2.6) | – |
| Streptococcus agalactiae or group B streptococci | 1 (0.9) | 2 (0.7) | – |
| Streptococcus dysgalactiae | – | 1 (0.4) | – |
| Streptococcus dysgalactiae equisimilis | – | 1 (0.4) | – |
| Streptococcus pneumonia | – | 1 (0.4) | – |
| Streptococcus pyogenes or group A streptococci | – | 2 (0.7) | – |
| Streptococcus species | 3 (2.7) | 9 (3.3) | 1 (3.4) |
| Viridians streptococci group | 3 (2.7) | 18 (6.6) | 2 (6.9) |
| Gram-negative bacilli | – | 2 (0.7) | 1 (3.4) |
| Gram-positive cocci | – | 2 (0.7) | 1 (3.4) |
| Othera | – | 4 (1.5) | 1 (3.4) |
BRLIE both right- and left- sided infective endocarditis, LIE left-sided infective endocarditis, RIE right-sided infective endocarditis
aIncludes Corynebacterium species