Mia Shokry, Kimiyo Yamasaki
Cite
Shokry M, Yamasaki K. Patient effort at a glance. J Mech Vent 2021; 2(4):147-148.
A: Patient with little effort.
Top: Volume Controlled Ventilation: airway pressure in cmH2O in yellow, constant flow in L/min in pink.
Middle: Pressure controlled ventilation: airway pressure in cmH2O in yellow, decelerating flow in L/min in pink.
Bottom: Esophageal pressure in cmH2O.
B: Patient with high effort.
Top: Volume Controlled Ventilation: airway pressure with convex negative deflection during trigger and first half of inspiration (blue arrow).
Middle: Pressure controlled ventilation: airway pressure with negative deflection during the trigger (yellow arrow) and slight convex deflection (green arrow), concave deflection in the flow (orange arrow).
Bottom: Convex deflection in esophageal pressure (grey arrow).
Keywords
Work of breathing, P0.1, Flow curve
References
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