Ā | Before the SBT | End of the SBT | ||||
---|---|---|---|---|---|---|
SBT success | SBT failure | p | SBT success | SBT failure | p | |
n | 22 | 31 | Ā | 22 | 31 | Ā |
Clinical variables | ||||||
Ā Systolic ABP, mmHg | 121 (110ā139) | 140 (118ā151) | 0.041 | 130 (109ā154) | 149 (128ā170) | 0.007 |
Ā Heat rate, minā1 | 94 (77ā101) | 93 (84ā104) | 0.840 | 97 (86ā105) | 105 (96ā121) | 0.036 |
Ā Respiratory rate, minā1 | 19 (15ā23) | 21 (18ā26) | 0.101 | 21 (19ā31) | 28 (21ā35) | 0.030 |
Laboratory variables | ||||||
Ā pH | 7.42 (7.38ā7.48) | 7.43 (7.38ā7.45) | 0.732 | 7.43 (7.40ā7.47) | 7.38 (7.34ā7.43) | 0.027 |
Ā PaO2/FiO2 ratio | 327 (237ā381) | 227 (168ā280) | 0.004 | 253 (197ā298) | 160 (107ā205) | ā<ā0.001 |
Ā PaCO2, mmHg | 36 (30ā43) | 42 (36ā49) | 0.009 | 39 (33ā43) | 50 (38ā57) | 0.002 |
Ā Lactate, mmol.Lā1 | 1.2 (0.8ā1.6) | 1.3 (1.0ā1.8) | 0.254 | 0.9 (0.7ā1.2) | 1.1 (1.0ā1.5) | 0.015 |
Ā Haemoglobin, g.dLā1 | 8.3 (7.8ā10.4) | 9.4 (8.4ā10.7) | 0.227 | 8.6 (7.9ā10.7) | 9.8 (8.8ā11.5) | 0.073 |
Ā Delta haemoglobin, % | ā | ā | Ā | 0 (-5ā5) | 5 (1ā9) | 0.013 |
Ā Protein, g.Lā1 | 55 (48ā59) | 60 (54ā65) | 0.021 | 53 (49ā59) | 64 (58ā69) | 0.001 |
Ā Delta protein, % | ā | ā | Ā | 4 (0ā5) | 7 (2ā9) | 0.014 |
Cardiac function | ||||||
Ā LEVF, % | 60 (50ā60) | 60 (50ā60) | 0.319 | 60 (50ā60) | 60 (50ā60) | 0.321 |
Ā CI, L.minā1.mā2 | 3.1 (2.6ā3.9) | 3.6 (2.9ā4.2) | 0.264 | 3.6 (2.8ā4.1) | 4.3 (3.6ā4.9) | 0.167 |
Ā eā wave, cm.sā1 | 11 (9ā12) | 10 (9ā12) | 0.904 | 10 (9ā13) | 11 (9ā13) | 0.939 |
Ā E/A ratio | 0.8 (0.7ā1.1) | 1.0 (0.8ā1.4) | 0.177 | 0.9 (0.7ā0.9) | 1.1 (0.9ā1.3) | 0.001 |
Ā Ā E/eā ratio | 7.1 (5.3ā8.6) | 8.1 (6.6ā10.5) | 0.092 | 7.4 (5.3ā9.2) | 9.3 (7.2ā1.28) | 0.022 |
Ā E/eāā>ā14, n (%) | 2 (10) | 1 (3) | Ā | 1 (10) | 5 (19) | Ā |
Ā DTE, ms | 175 (142ā210) | 172 (137ā201) | 0.967 | 169 (142ā228) | 157 (140ā200) | 0.329 |
Ā Systolic PAP, mmHg | 23 (20ā28) | 27 (20ā35) | 0.255 | 24 (21ā36) | 30 (21ā53) | 0.165 |
Ā TAPSE, cm | 2.3 (1.9ā2.6) | 2.1 (1.9ā2.7) | 0.988 | 2.3 (2.1ā2.7) | 2.3 (1.9ā2.9) | 0.839 |
Ā S wave, cm sā1 | 15.8 (13.7ā18.7) | 16 (14.0ā21.1) | 0.621 | 17.4 (14.1ā20.1) | 17.0 (15.6ā20.5) | 0.829 |
Diaphragm function | ||||||
Ā Ptr,stim, cmH2O | 6.8 (3.4ā8.8) | 4.1 (2.7ā7.9) | 0.098 | 6.0 (3.8ā8.3) | 4.3 (2.2ā6.9) | 0.192 |
Lung aeration | ||||||
Ā Lung consolidation, n | 2 (1ā4) | 4 (0ā10) | 0.026 | 2 (0ā1) | 6 (0ā10) | 0.025 |
Ā LUS | 10 (3ā19) | 17 (4ā33) | 0.123 | 9 (3ā20) | 20 (5ā33) | 0.060 |
Ā Posterior LUS | 7 (2ā12) | 10 (1ā17) | 0.377 | 6 (2ā14) | 11 (4ā17) | 0.112 |