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Fig. 3 | Critical Care

Fig. 3

From: Monitoring Patient Respiratory Effort During Mechanical Ventilation: Lung and Diaphragm-Protective Ventilation

Fig. 3

Computing inspiratory muscle pressure (Pmus) from the esophageal pressure (Pes) swing. Pmus derives from the difference between Pes and the added muscle pressure generated to overcome the chest wall elastic recoil (Pcw). Pcw represents the elastic recoil of relaxed chest wall; it can be computed as the product of tidal volume and chest wall elastance (Ecw). The Pmus area over time constitutes the pressure-time product (PTP) (yellow and blue area together)

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Critical Care

ISSN: 1364-8535