Table 2.
Comparison of diaphragmatic ultrasound between weaning outcomes
| Weaning success | Weaning failure | p-value | |
|---|---|---|---|
| Dex | 1.28 (0.94–1.93) | 0.83 (0.51–1.26) | 0.02 |
| Dexres | 1.7 (1.36–2.19) | 1.01 (0.58–1.51) | 0.017 |
| Tfdi | 0.47 (0.38–0.55) | 0.43 (0.24–0.67) | 0.336 |
| Tfdires | 0.52 (0.36–0.67) | 0.48 (0.35–0.62) | 0.545 |
| Vt | 449.52 (± 163.87) | 245.05 (± 119.12) | < 0.001 |
| Vtres | 240.68 (178.51–328.37) | 188.31 (119.3–260.95) | 0.045 |
| RSBI | 57.41 (39.38–77.59) | 118.39 (99.1–173.13) | < 0.001 |
| RSBIres | 88.96 (75.4–160.78) | 201.27 (130.56–257.84) | 0.002 |
Dex = diaphragmatic excursion, Dex,res = diaphragmatic excursion during resistive breathing, Tfdi = diaphragmatic thickening fraction, Tfdi,res = diaphragmatic thickening fraction during resistive breathing, Vt = Tidal Volume, Vtres = tidal volume during resistive breathing, RSBI = rapid shallow breathing index, RSBIres = rapid shallow breathing index during resistive breathing. Table entries represent means (± SD), medians (25th, 75th interquartile range. Comparisons between groups were performed with Student’s t test or Mann–Whitney U test respectively. P values represent the difference between spontaneous and resistive breathing