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Fig. 4 | Critical Care

Fig. 4

From: Limited predictability of maximal muscular pressure using the difference between peak airway pressure and positive end-expiratory pressure during proportional assist ventilation (PAV)

Fig. 4

a Maximum muscular pressure (P mus ) determined using either oesophageal pressure tracing or airway pressure under different proportional assist ventilation (PAV) gains. Significant differences (p < 0.05) were observed for all gain levels. b Bland-Altman analysis plot showing bias and agreement between maximal muscular pressure calculated from ΔP and PAV gain (P mus, aw ) and maximal muscular pressure calculated from maximum difference between passive and active Poes without consideration of PEEPi (P mus, oes ). The middle dashed line is the mean difference (bias). The outer dashed line is the 95% confidence interval of the difference between Pmus, aw and Pmus, oes (±1.96 SD)

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Critical Care

ISSN: 1364-8535