Table 2.
Diaphragm ultrasound findings in patients with successful and failed weaning
| Weaning test | Successful weaning | Failed weaning | Cut-off to predict successful weaning | |
|---|---|---|---|---|
| Diaphragm thickening fraction | ||||
| DiNino et al. [34] | PSV 8–0 | – | – | > 36% |
| T-tube | – | – | > 27% | |
| Ferrari et al. [33] | T-tube | – | – | > 36% |
| Blumhof et al. [32] | PSV 5–5 | 38% | 18% | > 20% |
| Farghaly et al. [35] | PSV 8–0 | 60% | 31% | > 34% |
| Dres et al. [6] | PSV 7–0 | 35% | 19% | > 29% |
| Jung et al. [5] | PSV 7–0 | 20% | 9% | – |
| T-tube | 20% | 12% | – | |
| Diaphragm excursion | ||||
| Dres et al. [6] | PSV 7–0 | 1.10 cm | 0.80 cm | 0.95 cm |
| Kim et al. [8] | – | – | – | 1.00 cm |
| Carrie et al. [51] | PSV 7–0 | 4.10 | 3.0 | 2.70 cm |
| Jiang et al. [47] | T-tube | 1.45 | 0.84 | 1.10 cm |
PSV: pressure support ventilation