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Fig. 2 | Critical Care

Fig. 2

From: Neural versus pneumatic control of pressure support in patients with chronic obstructive pulmonary diseases at different levels of positive end expiratory pressure: a physiological study

Fig. 2

Patient-ventilator interaction for all patients represented topographically. Topographic distribution of triggering error (y-axis) and cycling-off error (x-axis). The red area indicates 80 % of the most frequent patient-ventilator interactions for all breaths in all subjects during neurally triggered and cycled-off pressure support (PSN) (left panels) and pneumatically triggered and cycled-off pressure support (PSP) (right panels) during extrinsic positive end-expiratory pressure (PEEPe)0%, PEEPe40%, PEEPe80%, and PEEPe120%, (top to bottom). See text for details

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