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sinus rhythm | 是/Yes |
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Patients had invasive mechanical ventilation; vasoactive agent wasn’t used or had been evacuate | 是/Yes |
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existing pneumothorax or pulmonary bulla Without drainage. | 否/No |
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being intra-abdominal hypertension, bladder pressure measured by catheter ＞16cmH2O | 否/No |
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being gestation | 否/No |
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being younger than 18 years old | 否/No |
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being obvious right ventricular dysfunction, right heart failure and tricuspid regurgitation | 否/No |
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existing fluid infusion test contraindication (acute coronary syndrome, cardiogenic shock and evidence showing overload fluid) | 否/No |
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CVP | 7 |
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cardiac output | 4.68 |
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peak inspiratory pressure | 9 |
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Mean airway pressure | 4.5 |
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IVCdmax | 1.79 |
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Stroke VolumeVariation, SVV | 13.4 |
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the dispensability index of the inferior vena cava, dIVC | 10.15% |
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Pulse Pressure Variation, PPV | 10.17 |
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cardiac output | PEEP=0时，5.47；PEEP=5时，5.27；PEEP=10时，5.17；PEEP=15时，5.03. |
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Stroke VolumeVariation, SVV | PEEP=0时，13.4；PEEP=5时，14.9；PEEP=10时，16.12；PEEP=15时，18.18. |
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Pulse Pressure Variation | PEEP=0时，10.12；PEEP=5时，12.72；PEEP=10时，15.17；PEEP=15时，17.29. |
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the dispensability index of the inferior vena cava, dIVC | PEEP=0时，10.02%；PEEP=5时，9.72%；PEEP=10时，7.68%；PEEP=15时，6.79%. |
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CVP | PEEP=0时，8；PEEP=5时，12；PEEP=10时，14；PEEP=15时，16. |
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IVCdmax | PEEP=0时，1.82；PEEP=5时，2.1；PEEP=10时，2.22；PEEP=15时，2.28. |
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Mean airway pressure | PEEP=0时，4.8；PEEP=5时，9；PEEP=10时，17；PEEP=15时，22. |
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peak inspiratory pressure | PEEP=0时，10；PEEP=5时，20；PEEP=10时，25；PEEP=15时，32. |