TABLE 2.
Lung Ultrasound Findings in Patients With Bilateral Abnormalities on Lung Ultrasound but Unilateral Opacities on Chest Radiograph and With Acute Respiratory Distress Syndrome (ARDS) Diagnosis According to the Kigali Modification or the New Global Definition of ARDS
| Variable | Total (N = 33) | Kigali Modification (N = 14) | New Global Criteria (N = 12) |
|---|---|---|---|
| Imaging | |||
| Chest radiography (unilateral)a | |||
| Infiltrate/consolidation | 17 (51.5%) | 10(71.4%) | 8(66.7%) |
| Pleural effusion | 11 (33.3%) | 4(28.6%) | 1(8.3%) |
| Atelectasis | 13 (39.4%) | 3(21.4%) | 4(33.3%) |
| Lung ultrasound (bilateral)b | |||
| A-profile with positive PosteroLateral Alveolar and/or Pleural Syndromec | 19 (57.6%) | 3 (21.4%) | 4(33.3%) |
| Combination of B and C patternsc,d | 2 (6.1%) | 2 (14.3%) | 1 (8.3%) |
| Combination of A, B, and C patternsc,d | 12 (36.4%) | 9 (64.3%) | 7 (58.3%) |
| Respiratory | |||
| Invasively ventilated | 16 (48.4%) | 9 (64.3%) | 9 (75.0%) |
| High flow nasal oxygen ≥ 30 L/min | 5 (15.2%) | 2 (14.3%) | 3 (25%) |
| Low flow oxygen < 30 L/min | 12 (36.4%) | 3 (21.4%) | 0 (0%) |
| Positive end expiratory pressure ≥ 5 cm H2O | 15 (54.5%) | NA | 9 (75.0%) |
| Pao2/Fio2 ratio < 300 mm Hg | 17 (51.5%) | NA | 12 (100%) |
| Spo2/Fio2 ratio < 315 mm Hg | 22 (66.7%) | 14 (100%) | 12 (100%) |
| 28 d mortality | 3 (9%) | 2 (14%) | 2 (17%) |
Values are presented as mean (± sd) or as number (%).
a
Multiple simultaneous opacities possible.
b
There were no patients with only bilateral B patterns indicating cardiogenic edema.
c
According to BLUE protocol (9).
d
B pattern indicates ≥ 3 B lines in anterior or lateral views; C pattern indicates consolidation in anterior or lateral views.