Patients had invasive mechanical ventilation; vasoactive agent wasn’t used or had been evacuate | 是/Yes |
sinus rhythm | 是/Yes |
existing fluid infusion test contraindication (acute coronary syndrome, cardiogenic shock and evidence showing overload fluid) | 否/No |
being obvious right ventricular dysfunction, right heart failure and tricuspid regurgitation | 否/No |
being younger than 18 years old | 否/No |
being gestation | 否/No |
being intra-abdominal hypertension, bladder pressure measured by catheter >16cmH2O | 否/No |
existing pneumothorax or pulmonary bulla Without drainage. | 否/No |
the dispensability index of the inferior vena cava, dIVC | 5.28% |
Stroke VolumeVariation, SVV | 6.42 |
IVCdmax | 1.5 |
Mean airway pressure | 4.7 |
peak inspiratory pressure | 12 |
cardiac output | 4.56 |
CVP | 9 |
Pulse Pressure Variation, PPV | 6.32 |
peak inspiratory pressure | PEEP=0时,13;PEEP=5时,21;PEEP=10时,23;PEEP=15时,29. |
Mean airway pressure | PEEP=0时,4.8;PEEP=5时,10;PEEP=10时,15;PEEP=15时,21. |
IVCdmax | PEEP=0时,1.52;PEEP=5时,1.83;PEEP=10时,1.83;PEEP=15时,1.88. |
CVP | PEEP=0时,10;PEEP=5时,10;PEEP=10时,12;PEEP=15时,12. |
the dispensability index of the inferior vena cava, dIVC | PEEP=0时,5.25%;PEEP=5时,6.32%;PEEP=10时,5.28%;PEEP=15时,5.02%. |
Pulse Pressure Variation | PEEP=0时,6.28;PEEP=5时,6.68;PEEP=10时,6.79;PEEP=15时,7.32. |
Stroke VolumeVariation, SVV | PEEP=0时,6.38;PEEP=5时,6.88;PEEP=10时,6.06;PEEP=15时,7.17. |
cardiac output | PEEP=0时,5.26;PEEP=5时,5.32;PEEP=10时,4.96;PEEP=15时,5.22. |