Table 2.
Ultrasonographic variables of respiratory and peripheral muscles within 24 h of ICU admission.
| Ultrasound variables | Global (n = 32) | Alive (n = 15) | Dead (n = 17) | p Value |
|---|---|---|---|---|
| Right intercostal thickness (cm) | 0.39 [0.34;0.47] | 0.37 [0.28;0.40] | 0.40 [0.36;0.48] | 0.1881 |
| Right intercostal echogenicity (AU) | 105.6 [86.7; 113.2] | 91 [75.1;98.3] | 108 [106; 117.6] | 0.0002 |
| Left intercostal thickness (cm) | 0.40 [0.30;0.44] | 0.34 [0.30;0.40] | 0.40 [0.29;0.50] | 0.3023 |
| Left intercostal echogenicity (AU) | 106.4 [93.4; 109.4] | 99.2 [77.4; 103.2] | 108.4 [106.5; 117.5] | 0.0003 |
| Diaphragm thickness (cm) | 0.25 [0.19;0.28] | 0.20 [0.17;0.28] | 0.26 [0.22;0.30] | 0.0592 |
| Diaphragm echogenicity (AU) | 74.1 [65.1;84.0] | 65 [62.6;68] | 77 [74.2;94] | 0.0002 |
| Rectus femoris thickness (cm) | 0.59 [0.56;0.69] | 0.69 [0.60;0.75] | 0.56[0.52;0.57] | 0.0283 |
| Rectus femoris CSA (cm2) | 1.83 [1.2;2.6] | 1.83 [1.1;2.6] | 1.84 [1.3;2.7] | 0.9967 |
| Rectus femoris echogenicity (AU) | 99.7 [89.3;115] | 89.3 [81.4;95.8] | 108.8 [101.1; 118.6] | <0.0001 |
AU: arbitrary units; CSA: cross-sectional area.