Table 3.
Comparison of Pathogens Obtained from Blood and/or Bile Cultures and 30-Day Mortality Rates among Each Severity Grade
| Bacterial species | Total (n=266) | Severity* | ||
|---|---|---|---|---|
| Grade I (n=129, 48%) | Grade II (n=58, 22%) | Grade III (n=79, 30%) | ||
| Enterococcus spp. | ||||
| Enterococcus faecalis | 33 (12) | 15 (12) | 8 (14) | 10 (13) |
| Enterococcus faecium | 26 (10) | 11 (9) | 5 (9) | 10 (13) |
| Enterococcus casseliflavus | 18 (7) | 10 (8) | 2 (3) | 6 (8) |
| Enterococcus avium | 5 (2) | 1 (1) | 2 (3) | 2 (3) |
| Enterococcus raffinosus | 2 (1) | 2 (2) | 0 | 0 |
| Enterococcus gallinarum | 4 (2) | 2 (2) | 2 (3) | 0 |
| Others | ||||
| Escherichia coli | 72 (27) | 28 (22) | 16 (28) | 28 (35) |
| Klebsiella pneumoniae | 47 (18) | 18 (14) | 13 (22) | 16 (20) |
| Klebsiella oxytoca | 19 (7) | 8 (6) | 5 (9) | 5 (6) |
| Enterobacter cloacae | 12 (5) | 7 (5) | 2 (3) | 3 (4) |
| Clostridium perfringens | 17 (6) | 8 (6) | 2 (3) | 7 (9) |
| Aeromonas hydrophila | 17 (6) | 5 (4) | 6 (10) | 6 (8) |
| Bacteroides fragilis | 8 (3) | 1 (1) | 3 (5) | 4 (5) |
| Pseudomonas aeruginosa | 24 (9) | 14 (11) | 3 (5) | 7 (9) |
| Staphylococcus epidermidis | 9 (3) | 8 (6) | 0 | 1 (1) |
| 30-Day mortality rates, % | 2.8 | 2.5 | 1.9 | 3.9 |
Data are presented as the number (%). Cases that were caused by multiple microorganisms were counted separately.
*Severity of acute cholangitis was defined according to the Tokyo Guidelines 2018.