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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 | 4.61 |
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peak inspiratory pressure | 10 |
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Mean airway pressure | 5.9 |
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IVCdmax | 1.62 |
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Stroke VolumeVariation, SVV | 9.55 |
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the dispensability index of the inferior vena cava, dIVC | 12.41% |
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Pulse Pressure Variation, PPV | 8.77 |
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cardiac output | PEEP=0时，5.4；PEEP=5时，5.35；PEEP=10时，5.5；PEEP=15时，5.05. |
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Stroke VolumeVariation, SVV | PEEP=0时，9.52；PEEP=5时，11.1；PEEP=10时，11.78；PEEP=15时，12.82. |
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Pulse Pressure Variation | PEEP=0时，8.75；PEEP=5时，9.36；PEEP=10时，11.28；PEEP=15时，13.35. |
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the dispensability index of the inferior vena cava, dIVC | PEEP=0时，12.3%；PEEP=5时，10.14%；PEEP=10时，10.49%；PEEP=15时，9.57%. |
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CVP | PEEP=0时，8；PEEP=5时，10；PEEP=10时，12；PEEP=15时，15. |
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IVCdmax | PEEP=0时，1.64；PEEP=5时，2.08；PEEP=10时，2.14；PEEP=15时，2.08. |
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Mean airway pressure | PEEP=0时，10；PEEP=5时，10；PEEP=10时，15；PEEP=15时，19. |
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peak inspiratory pressure | PEEP=0时，10；PEEP=5时，20；PEEP=10时，24；PEEP=15时，32. |