Table 3. Microorganisms isolated from deep tissue and superficial swab of 83 patients with DFI.
| Pathogen | Total number of isolates n=307 | Culture deep tissue n=131 (%) / swab n=176 (%) | Resistance deep tissue n=131 (%) | Resistance swab n=176 (%) |
|---|---|---|---|---|
| Gram-positive | ||||
| Enterococcus spp. | 59 | 30 (51) / 29 (49) | ||
| E. faecalis | 50 | 26 (52) / 24 (48) | 0 | 1 (4.2) MDR |
| E. avium | 6 | 2 (33.3) / 4 (66.7) | 0 | 0 |
| E. faecium | 3 | 2 (66.7) / 1 (33.3) | 1 (50) VRE | 0 |
| Staphylococcus spp. | 76 | 32 (42.1) / 44 (57.9) | ||
| S. aureus | 34 | 12 (35.3) /22 (64.7) | 2 (16.7) MRSA | 7 (31.8) MRSA |
| S. epidermidis | 20 | 11 (55) / 9 (45) | 8 (72.7) MRSE | 8 (88.9) MRSE |
| aOther CNS | 22 | 9 (40.1) /13 (59.8) | 3 (33.3) MRS | 5 (38.5) MRS |
| Streptococcus spp. | 12 | 4 (33.3) / 8 (66.7) | ||
| S. agalactiae | 5 | 1 (20) / 4 (80) | 0 | 0 |
| S. constellatus | 4 | 2 (50) / 2 (50) | 0 | 0 |
| bOther streptococci | 3 | 1 (33.3) / 2 (66.7) | 0 | 0 |
| Gram-negative | ||||
| Proteus spp. | 34 | 15 (44.1) / 19 (55.9) | ||
| P. mirabilis | 27 | 12 (44.4) / 15 (55.6) | 3 (25) MDR1 (8.3) XDR | 2 (13.3) MDR1 (6.7) XDR |
| P. vulgaris | 5 | 2 (40) / 3 (60) | 0 | 0 |
| P. penneri | 2 | 1 (50) / 1 (50) | 0 | 0 |
| Pseudomonas spp. | 20 | 10 (50) /10 (50) | ||
| P. aeruginosa | 18 | 9 (50) / 9 (50) | 1 (1) MDR1 (%) XDR | 1 (1) MDR |
| P. putida | 2 | 1 (50) / 1 (50) | 0 | 0 |
| Klebsiella spp. | 21 | 8 (38) / 13 (62) | ||
| K. pneumoniae | 14 | 5 (36%) / 9 (64) | 3 (60) MDR | 6 (66.7) MDR |
| K. oxytoca | 7 | 3 (42.8) / 4 (57.2) | 0 | 0 |
| Escherichia coli | 17 | 7 (41) / 10 (59) | 1 (14.3) MDR | 1 (10) MDR |
| Morganella spp. | 13 | 6 (46) / 7 (54) | 1 (16.7) MDR1 (16.7) XDR | 1 (14.3) MDR |
| Enterobacter spp. | 11 | 4 (36.4) / 7 (63.6) | 2 (50) MDR | 2 (28.6) |
| Citrobacter spp. | 5 | 2 (40) / 3 (60) | 0 | 0 |
| Serratia spp. | 6 | 2 (33.3) / 4 (66.6) | 0 | 2 (50) MDR |
| Acinetobacter spp. | 5 | 3 (60) / 2 (40) | 2 (66.7) MDR1 (33.3) XDR | 2 (100) MDR |
| Providencia spp. | 5 | 1 (20) / 4 (80) | 1 | 1 |
| cOther Gram-negative | 7 | 1 (14.3) / 6 (85.7) | 1 (100) MDR | 1 (16.7) MDR |
| dAnaerobes | 16 | 5 (31.3) / 11 (68.7) | 1 (20) MDR | 1 (9.1) MDR |
CNS - coagulase negative staphylococci; MRSA - methicillin resistant Staphylococcus aureus; MRSE - methicillin resistant Staphylococcus epidermidis; VRE - vancomycin resistant enterococci.
Other CNS: Staphylococcus saprophyticus, Staphylococcus lugdunensis, Staphylococcus haemolyticus, Staphylococcus warneri, Staphylococcus hominis, Staphylococcus simulans, Staphylococcus cohnii, Staphylococcus sciuri, Staphylococcus coagulase-negative.
Other streptococci: Streptococcus bovis, Aerococcus viridans, Streptococcus dysgalactiae.
Other Gram negative: Alcaligenes faecalis, Finegoldia magna, Prevotella oralis, Stenotrophomonas spp.
Anaerobes: Corynebacterium minutissimum, Corynebacterium group I, Clostridium sordellii, Clostridium perfringens, Bacteroides uniformis, Bacteroides ureolyticus, Bacteroides fragilis, Peptostreptococcus spp.