Research Article
Heart-Protective Mechanical Ventilation in Postoperative Cardiosurgical Patients
Table 1
Changes in respiratory parameters in patients from the interventional group at three hours of the study, median (25th; 75th percentiles), n = 95.
| | Data | Hours in ICU | | #1 | #2 | #3 | |
| | MV (l × min−1) | 11.2 (10.1; 12.6) | 6.4 (5.8; 7.2) | 6.7 (6.1; 7.6) | <0.001 |
| | Va (l × min−1) | 9.5 (8.8; 10.7) | 5.4 (5.0; 6.1) | 5.2 (4.7; 5.9) | <0.001 |
| | (cmH2O) | 10.0 (10.0; 11.0) | 8.0 (8.0; 9.0) | 13.0 (13.0; 14.0) | <0.001 |
| | (cmH2O) | 21.0 (20.0; 23.0) | 21.0 (19.0; 22.0) | 21.0 (19.0; 23.0) | = 0.5
= 0.06
<0.001 |
| | R (cmH2O × l−1 × sec−1) | 7.9 (6.5; 8.5) | 7.4 (6.4; 8.6) | 7.0 (6.0; 8.0) | <0.001
= 0.007 |
| | С (ml × cmH2O−1) | 54.1 (46.7; 62.1) | 56.7 (49.0; 62.4) | 54.1 (48.2; 59.8) | = 0.2
<0.001
= 0.006 |
| | Vds/Vte (%) | 14.0 (12.0; 15.0) | 14.0 (13.0; 16.0) | 21.0 (18.0; 24.0) | <0.001
= 0008 |
| | ΔP (cmH2O) | 16.0 (15.0; 18.0) | 16.0 (14.0; 17.0) | 11.0 (9.0; 13.0) | <0.001 |
|
|
MV: minute ventilation; Va: alveolar ventilation; : mean airway pressure; : inspiratory pressure; R: resistance; C: compliance; Vds/Vte: dead space/tidal volume ratio; Δ Р: driving pressure; P: Wilcoxon test. |
