Table 1 Comparison between patients with successful and failed weaning as regards traditional weaning indices and new diaphragmatic parameters

 TV (mL/kg)

435

(420–458.8)

450

(420–460)

0.4^$$

 PaO₂/FIO₂

206

(197.3–211.8)

190

(185–199.8)

< 0.001^$$

 RR

16

(15–17)

18

(17–19)

< 0.001^$$

 MV (L/m)

6.83

0.71

7.31

0.77

0.01^$

 RSBI

58

(52–63)

46

(41–51)

0.005^$$

 DT Insp mm

24

(23.25–26)

18

(17–19.15)

< 0.001^$$

 DT Expt(FRC) mm

17

(15–18)

14

(12.3–15)

< 0.001^$$

 DTF%

44.41

(35.07–67.12)

30.38

(23.34–38.07)

< 0.001^$$

 DE in cm

1.95

(1.53–2.75)

1.66

(1.09–1.94)

0.003^$$

 DT Insp (TLC) mm

36.5

(33–39.75)

26

(23.25–29.75)

< 0.001^$$

 DT Exp (RV) mm

25

(22–27)

20.5

(18–22.75)

< 0.001^$$

 DTF %

50

(43.05–58.2)

25

(23.8–26.99)

< 0.001^$$

 DE in cm

3.6

(3–5.4)

2.95

(1.73–4.05)

0.01^$$