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Figure 3 | Critical Care

Figure 3

From: Matching positive end-expiratory pressure to intra-abdominal pressure improves oxygenation in a porcine sick lung model of intra-abdominal hypertension

Figure 3

Shunt fraction in % ( A ) and dead-space fraction in % ( B ) in function of different levels of intra-abdominal hypertension (IAH) (baseline (3 cmH 2 O), grade II IAH (25 cmH 2 O = 18 mmHg), and grade III IAH (30 cmH 2 O = 22 mmHg)) at different degrees of IAP-matching levels of positive end-expiratory pressures (PEEP). Mean and SE are shown. ANOVA and post hoc Student-Newman-Keuls were used for statistical testing. §, P <0.05 comparing before and after oleic acid (baseline IAP and 5 cmH2O PEEP). *, P <0.05 within an IAP setting versus the corresponding value at 5 cmH2O PEEP. **, P <0.05 within an IAP setting comparing moderate versus high PEEP. #, P <0.05 within a PEEP setting versus the corresponding value at baseline IAP. ANOVA, analysis of variance.

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Critical Care

ISSN: 1364-8535