Table 2.
Characteristics of tracheostomized patients according to success at weaning
| Variables | Weaning successful | p value | |
|---|---|---|---|
| Yes (n = 45) |
No (n = 36) |
||
| Age (years) | 68 (14.5) | 66 (14.5) | 0.527 |
| BMI (kg/m2) | 25.5 (8) | 27.6 (9.6) | 0.330 |
| RF-CSA (cm2) | 1.84 (0.76) | 1.4 (0.8) | 0.014 |
| DEx (cm) | 1.62 ± 0.51 | 1.29 ± 0.62 | 0.019 |
| SAPS III | 75.4 ± 13 | 76.8 ± 12 | 0.598 |
| SOFA at TCT day | 4 (3) | 7.5 (5) | < 0.001 |
| MIP (cmH2O) | -56 ± 28 | -42 ± 16 | 0.004 |
| Duration of MV before TCT (days) | 16 (8.5) | 19 (8) | 0.067 |
| Duration of MV after TCT (days) | 6 (11.5) | 16.5 (21) | < 0.001 |
| Total duration of MV (days) | 25 (12) | 35 (23) | 0.001 |
| Time spent on weaning (days) | 18 (17) | 19 (16) | 0.487 |
| ICU length of stay (days) | 33 (15.5) | 33.5 (17.5) | 0.118 |
| Hospital length of stay (days) | 59 (30.5) | 45 (48) | 0.079 |
| ICU mortality | 1 (2.2) | 33 (91) | < 0.001 |
| Hospital mortality | 15 (33) | 35 (97.2) | < 0.001 |
BMI - body mass index; RF-CSA - rectus femoris cross-sectional area; Dex - diaphragmatic excursion; SAPS III - Simplified Acute Physiology Score III; SOFA - Sequential Organ Failure Assessment; MIP - maximum inspiratory pressure; TCT - tracheostomy; MV - mechanical ventilation; ICU - intensive care unit. The results are expressed as the median (interquartile range), mean ± standard deviation or n (%).