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Fig. 6 | Critical Care

Fig. 6

From: Unmatched ventilation and perfusion measured by electrical impedance tomography predicts the outcome of ARDS

Fig. 6

Correlation between PEEP and percentage of unmatched units in patients with low and high PaO2/FiO2. Higher PEEP values tend to correlate with lower percentage of unmatched units in the more severe subgroup with lower PaO2/FiO2 ratio (r =  − 0.387, p = 0.056), but not in the subgroup with higher PaO2/FiO2 ratio (r = 0.152, p = 0.465). The two subgroups were defined based on the median value of PaO2/FiO2 in the study population (lower or equal to 165 mmHg versus higher than 165 mmHg)

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Critical Care

ISSN: 1364-8535