The lung pressure-volume curve reflects the pulmonary mechanical characteristics of acute respiratory distress syndrome during lung scanning. Bearing in mind that the lung pressure-volume curve can not only monitor the lung mechanical injury, but also guide the setting of mechanical ventilation parameters, thus reducing the possibility of ventilator-associated lung injury. With the development of medicine, the recording method of lung pressure-volume curve has developed from the initial static curve to the current static and dynamic scanning methods, and the recording of pressure-volume curve has a deeper understanding. Combined with various scanning methods of lung pressure-volume curve, this paper expounds its meaning and the adjustment of ventilation parameters of acute respiratory distress syndrome by using lung pressure-volume curve, which provides reference for mechanical ventilation settings in acute respiratory distress syndrome and other fields. The current literature suggests that the inflection point of lung pressure-volume curve of maximum respiratory support curve may be more reasonable when mechanical ventilation is established in acute respiratory distress syndrome. However, how to describe and understand the lung pressure-volume curve of patients with acute respiratory syndrome conveniently and accurately to guide the setting of mechanical ventilation parameters needs further experimental and clinical research.

Keywords acute respiratory distress syndrome; Pressure-volume curve; Mechanical ventilation; Peep; Ventilator-associated lung injury