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Figure 1 | Critical Care

Figure 1

From: Assessment of patient-ventilator breath contribution during neurally adjusted ventilatory assist in patients with acute respiratory failure

Figure 1

Description of reference points used for calculation of respiratory variables. Reference points are indicated for calculating peak airway pressure (Pawpk), change in esophageal pressure (Pes) from onset of electrical activity of the diaphragm (EAdi) to peak (nadir) (ΔPes), change in transpulmonary pressure (Ptp) from onset of EAdi to peak (ΔPtp), peak EAdi (EAdipk) and inspiratory tidal volume (Vtinsp). Neural inspiratory period (Ti) and total breath time (Ttot) are indicated at bottom. Breathing frequency (Fb) was calculated as 60/Ttot.

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Critical Care

ISSN: 1364-8535