Table 2.
Bronchoalveolar lavage and autoantibody results in patients with iARDS
| Parameter | Idiopathic ARDS (n = 17) |
Immune-related ARDS (n = 14) |
|---|---|---|
| BAL, n (%) | 8 (47.1) | 7 (50.0) |
| Cell count, 105/mL | 7.5 (4.1–13.3) | 12.0 (3.7–17.3) |
| Cell types (%) | ||
| Macrophages | 36.3 (25.2–57.8) | 31.3 (18.0–49.0) |
| Neutrophils | 27.2 (5.7–58.5) | 41.0 (5.2–77.0) |
| Lymphocytes | 21.7 (10.1–40.8) | 24.5 (2.5–51.4) |
| Hemorrhage | 1 (12.5) | 4 (57.1) |
| Neutrophilic pattern | 2 (25.0) | 3 (42.9) |
| Lymphocytic pattern | 1 (12.5) | 1 (14.3) |
| Mixed pattern | 5 (62.5) | 3 (42.9) |
| Autoantibodies, n (%) | ||
| ANA | 3 (17.4) | 9 (64.3) |
| CCP | 2 (11.8) | 5 (35.7) |
| ANCA | 0 | 2 (14.3) |
| SSc-associated | 0 | 2 (14.3) |
| RNP | 0 | 1 (7.1) |
| ARS | 4 (23.5) | 0 |
BAL bronchoalveolar lavage, ANA antinuclear antibody, CCP cyclic citrullinated peptide, ANCA anti-neutrophil cytoplasmic antibody, SSc systemic sclerosis, RNP ribonucleoprotein, ARS aminoacyl-tRNA synthetases