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Fig. 1 | Critical Care

Fig. 1

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. 1

Graphic illustration of flow, airway pressure (P aw ), and oesophageal pressure tracing (P oes ) during proportional assist ventilation. Chest wall recoil pressure (P cw ) was calculated from the product of tidal volume and dynamic chest wall elastance. Upper bound oesophageal pressure time product (PTP oes, PEEPi) was calculated as the integration of the difference between Pcw, PEEPi and Poes. Lower bound oesophageal pressure time product (PTP oes ) was calculated as the integration of the difference between Pcw and Poes. Pmus, oes and Pmus, oes, PEEPi represent the maximal difference between passive and active Poes

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Critical Care

ISSN: 1364-8535