Table 3.
Summary of microbiology results for blood culture results, liver abscess aspirate culture results, and presumed causative pathogen
| Organism |
n (% of patients with culture results) |
||
| Positive blood cultures | Positive liver aspirate cultures | Causative pathogen | |
| Streptococcus milleri | 8 (14) | 12 (24) | 16 (25) |
| Klebsiella species | 9 (16) | 8 (16) | 13 (21) |
| K. pneumoniae | 7 | 8 | 11 |
| K. oxytoca | 1 | 0 | 1 |
| K. terrigena | 1 | 0 | 1 |
| Escherichia coli | 6 (11) | 3 (5.9) | 10 (16) |
| Mixed1 | 2 (3.6) | 6 (12) | 5 (8) |
| Fusobacterium necrophorum | 1 (1.8) | 1 (2.0) | 2 (3.2) |
| Pseudomonas aeruginosa | 0 (0) | 1 (2.0) | 1 (1.6) |
| Lactobacillus | 0 (0) | 1 (2.0) | 1 (1.6) |
| Corynebacterium urealyticum | 0 (0) | 1 (2.0) | 1 (1.6) |
| Citrobacter koseri | 0 (0) | 1 (2.0) | 1 (1.6) |
| Staphylococcus aureus2 | 1 (1.8) | 0 (0) | 0 (0) |
| Causative organism not identified | - | - | 13 (21) |
| Total negative | 29 (52) | 17 (33) | - |
| Total positive | 27 (48) | 34 (67) | 50 (79) |
| Total number of patients with available culture results | /55 | /51 | /63 |
1
Includes 2 cases of Clostridium perfringens;
2
Discordant with liver abscess microbiology. Likely contaminant.