| All patients (n = 51) | Weaning success (n = 36) | Weaning failure (n = 15) | p value |
---|---|---|---|---|
Males, n (%) | 38 (75) | 29 (81) | 9 (60) | 0.125 |
Age, years | 72 (55–82) | 72 (59–81) | 77 (56–82) | 0.612 |
Comorbidities, n (%) | ||||
 Hypertension | 16 (31) | 10 (28) | 6 (40) | 0.599 |
 Diabetes mellitus | 13 (25) | 8 (22) | 5 (33) | 0.633 |
 Ischemic cardiomyopathy | 8 (16) | 6 (17) | 2 (13) | 0.901 |
 COPD | 4 (8) | 2 (6) | 2 (13) | 0.712 |
 Chronic renal failure | 5 (10) | 5 (14) | 0 (0) | 0.316 |
 Dilated cardiomyopathy | 2 (4) | 2 (6) | 0 (0) | 0.999 |
Reason for ICU admission, n (%) | ||||
 Pneumonia | 23 (45) | 15 (42) | 8 (53) | 0.446 |
 Neurological | 7 (14) | 6 (17) | 1 (7) | 0.618 |
 Cardiac pulmonary oedema | 4 (8) | 4 (11) | 0 (0) | 0.439 |
 Cardiac arrest | 4 (8) | 1 (3) | 3 (20) | 0.13 |
 Septic shock | 3 (6) | 1 (3) | 2 (13) | 0.203 |
 Acute myocardial infarction | 2 (4) | 2 (6) | 0 (0) | 0.999 |
 Other | 8 (16) | 7 (19) | 1 (7) | 0.471 |
Clinical data | ||||
 APACHE II score | 19 (16–22) | 19 (16–22) | 21 (19–21) | 0.106 |
 SOFA score | 6 (4–8) | 6 (5–8) | 6 (5–7) | 0.616 |
 Albumin, g/L | 32 (29–37) | 33 (31–37) | 31 (27–33) | 0.119 |
 Cumulative fluid balance over last 3 days*, mL | 550 (-767-1503) | -41 (-847-949) | 1300 (375–1746) | 0.051 |
 Use of diuretics, n (%) | 32 (63) | 21 (58) | 11 (73) | 0.313 |
 Duration of mechanical ventilation, days | 6 (3–8) | 6 (3–7) | 7 (4–9) | 0.174 |
Mechanical ventilation parameters | ||||
 Pressure-support ventilation, n (%) | 46 (90) | 31 (86) | 15 (100) | 0.316 |
 Assist-control ventilation, n (%) | 5 (10) | 5 (14) | 0 (0) | 0.316 |
 Pressure-support level, cmH2O | 13 (11–14) | 13 (10–13) | 14 (11–15) | 0.084 |
 PEEP, cmH2O | 3 (3–4) | 3 (3–4) | 4 (3–4) | 0.761 |
 FiO2, % | 40 (35–40) | 40 (35–40) | 40 (35–40) | 0.667 |
Clinical outcomes | ||||
 ICU mortality, n (%) | 9 (18) | 5 (14) | 4 (27) | 0.275 |
 ICU length of stay, days | 12 (6–24) | 10 (5–21) | 15 (10–24) | 0.06 |