From: Diaphragm thickening fraction to predict weaning—a prospective exploratory study
Diaphragm parameters | Weaning groups (N = 64) | Negative pressure trigger (N = 64) | |||||||
---|---|---|---|---|---|---|---|---|---|
Median (IQR) | Simple (n = 33) Complicated (n = 31) | 2 | 4 | 6 | T-piece | p ## | p ### | ||
∆2–4 | ∆4–6 | ∆2–6 | |||||||
DTi, mm | Simple | 2.2 (2.1–2.3) | 2.2 (2.2–2.3) | 2.2 (2.2–2.3) | 2.2 (2.2–2.2) | < 0.001* | < 0.001* | < 0.001* | <0.001* |
Complicated | 2.0 (2.0–2.1) | 2.1 (2–2.2) | 2.0 (2.0–2.2) | 2.0 (2.0–2.2) | < 0.001* | < 0.001* | < 0.001* | 0.004 | |
p # | < 0.001 | < 0.001 | < 0.001 | < 0.001 | |||||
DTe, mm | Simple | 1.7 (1.6–1.7) | 1.7 (1.7–1.8) | 1.7 (1.7–1.8) | 1.7 (1.6–1.8) | < 0.001* | < 0.001* | 0.82 | <0.001* |
Complicated | 1.6 (1.5–1.7) | 1.7 (1.6–1.8) | 1.6 (1.6–1.8) | 1.7 (1.6–1.8) | 0.001 | < 0.001* | 0.03 | 0.006 | |
p # | 0.22 | 0.31 | 0.10 | 0.16 | |||||
DTf, % | Simple | 31 (28–32) | 31 (28–35) | 29 (26–32) | 29 (26–33) | 0.010 | 0.40 | 0.001 | 0.05 |
Complicated | 22 (17–24) | 22 (18–27) | 23 (18–25) | 21 (17–25) | 0.34 | 0.94 | 0.28 | 0.50 | |
p # | < 0.001 | < 0.001 | < 0.001 | < 0.001 | |||||
AMP, cm | Simple | 1.3 (1.3–1.5) | 1.3 (1.3–1.5) | 1.3 (1.2–1.4) | 1.3 (1.2–1.4) | < 0.001* | < 0.001* | < 0.001* | 0.49 |
Complicated | 1.2 (1.1–1.2) | 1.2 (1.1–1.3) | 1.2 (1.1–1.2) | 1.2 (1.1–1.2) | < 0.001* | < 0.001* | 0.01 | <0.001* | |
p # | < 0.001 | < 0.001 | < 0.001 | < 0.001 | |||||
SPcont, cm/s | Simple | 1.3 (1.3–1.3) | 1.3 (1.3–1.4) | 1.3 (1.3–1.4) | 1.3 (1.2–1.3) | < 0.001* | 0.001 | < 0.001* | 0.36 |
Complicated | 1.2 (1.1–1.2) | 1.2 (1.1–1.3) | 1.2 (1.1–1.3) | 1.2 (1.1–1.3) | 0.001 | < 0.001* | 0.97 | <0.001* | |
p # | < 0.001 | < 0.001 | < 0.001 | < 0.001 |