Table 2 Respiratory and hemodynamic parameters during the baseline measurements (pre D), the spontaneous breathing trial (D(f)) and (D(l)) and after reconnection to the ventilator (post D) for all patients

VT (ml)

pre D

383 (339/508)^c

340 (308/378)

423 (373/534)

D (f)

337 (266/551)^c

210 (167/470)

345 (297/475)

D (l)

318 (220/453)^c

198 (176/395)

343 (300/452)

post D

409 (361/496)^c

383 (344/462)

407 (362/514)

RR (bpm)

pre D

21 (16/29)

25 (20/30)

22 (15/26)

D (f)

24 (20/29)

30 (25/38)^a

21 (17/24)^a

D (l)

22 (20/30)

29 (23/37)^a

21 (17/22)^a

post D

21 (17/24)

19 (17/21)

22 (18/23)

VT/EAdi

pre D

46 (29/120)^d

45 (38/127)^c

43 (25/92)

D (f)

21 (11/43)^d

14 (12/18)^c

35 (15/70)

D (l)

16 (8/27)^d

14 (9/15)^c

24 (12/53)

post D

45 (27/68)^d

41 (36/62)^c

45 (23/64)

RR/VT

pre D

49 (37/81)^c

77 (54/96)

48 (33/58)

D (f)

61 (47/109)^c

127 (62/286)

59 (44/74)

D (l)

71 (51/118)^c

135 (74/250)

63 (40/75)

Post D

50 (33/71)^c

51 (37/57)

50 (40/67)

HF (bpm)

Pre D

84 (79/91)^b

84 (81/89)^b

84 (76/88)

D (f)

89 (79/102)^b

87 (79/100)^b

85 (80/95)

D (l)

92 (78/103)^b

100 (86/111)^b

89 (77/95)

Post D

88 (78/100)^b

86 (79/97)^b

89 (78/94)

BP syst (mm Hg)

Pre D

126 (111/142)^b

125 (111/151)^c

126 (118/139)

D (f)

144 (121/151)^b

162 (145/171)^c

138 (116/147)

D (l)

134 (121/150)^b

155 (137/171)^c

125 (121/145)

post D

127 (116/140)^b

133 (117/140)^c

126 (121/133)

MAAS

pre D

3 (2/3)^d

2 (2/3)^b

3 (2/3)

D (f)

3 (2/4)^d

3 (2/4)^b

3 (3/3)

D (l)

3 (3/5)^d

5 (3/5)^b

3 (3/3)

post D

3 (2/3)^d

2 (2/3)^b

3 (2/3)

EAdi_max (μV)

pre D

9 (5/12)^c

8 (4/9)^c

10 (7/19)

D (f)

11 (10/29)^c

19 (12/27)^c

10 (8/32)

D (l)

18 (11/29)^c

26 (16/29)^c

13 (9/26)

post D

10 (8/15)^c

9 (6/12)^c†

9 (7/18)