Table 3.
Comparison of organ system involvement, sites of clinical isolation, and radiographic findings in R. equi infection in the seven studies under analysis.
| Studies | Number of patients | Site of isolation∗ | Organ system involved | Radiographic findings | ||||
|---|---|---|---|---|---|---|---|---|
| Respiratory specimen (%) | Blood (%) | Other† | Pulmonary ± extrapulmonary (%) | Extrapulmonary only (%) | Pneumonia on imaging | Cavitary lesion (%) | ||
| Europe | ||||||||
| Donisi et al. [12] | 12 | 4 (25) | 10 (63) | 2 (12) | 9 (75) | 3 (25) | 9 | 5 (56) |
| Arlotti et al. [11] | 24 | 21 (51) | 13 (32) | 7 (17) | 24 (100) | 0 (0) | 24 | 18 (75) |
| Torres-Tortosa et al. [16] | 67 | 64 (52) | 34 (27) | 26 (21) | 65 (97) | 2 (3) | 65 | 45 (49) |
| Topino et al. [13] | 10 | 5 (38) | 8 (62) | 0 (0) | 9 (90) | 1 (10) | 9 | 6 (67) |
|
| ||||||||
| Subtotal | 113 | 94 (48) | 65 (34) | 35 (18) | 107 (95) | 6 (5) | 107 | 74 (69) |
|
| ||||||||
| United States | ||||||||
| Verville et al. [15] | 12 | 8 (53) | 5 (33) | 2 (13) | 8 (67) | 4 (33) | 8 | 6 (75) |
| Scott et al. [14] | 12 | 6 (35) | 7 (41) | 4 (24) | 8 (67) | 4 (33) | 8 | 7 (88) |
| University of Kentucky | 12 | 7 (47) | 5 (33) | 3 (20) | 10 (83) | 2 (17) | 10 | 4 (40) |
|
| ||||||||
| Subtotal | 36 | 21 (45) | 17 (36) | 9 (19) | 26 (72) | 10 (28) | 26 | 17 (65) |
|
| ||||||||
| Total | 149 | 115 (48) | 82 (34) | 44 (18) | 133 (89) | 16 (11) | 133 | 91 (68) |
∗Total numbers of specimens are more than numbers of patients as R. equi was isolated from a variety of specimens.
†Bone, joint fluid, abscess, wound, pleura and pericardial fluid, liver, brain, cerebral spinal fluid, stool, and skin.