The difference between the inflation and deflation curves. A wide loop can suggest recruitment of alveoli or significant energy dissipation.
A flatter loop indicates decreased compliance (stiffer lungs, as seen in ARDS), while a steeper loop indicates higher compliance. Variable Parameters (.var)
) waveforms in pulmonary physiology and mechanical ventilation. Alveolar Pressure ( Palvcap P sub a l v end-sub ) Fundamentals In the context of respiratory mechanics, Palvcap P sub a l v end-sub Shapes.PalV.3.var
Based on the notation , this content likely refers to variables associated with Pressure-Volume (PV) loops and alveolar pressure ( Palvcap P sub a l v end-sub
Useful for assessing the risk of barotrauma and hemodynamic impact. Transpulmonary Pressure ( PLcap P sub cap L ): Calculated as , this is the actual stress applied to the lung tissue. The difference between the inflation and deflation curves
The maximum pressure reached in the alveoli at the end of inspiration.
): The pressure generated by the lungs wanting to collapse inward. Pleural Pressure ( Pplcap P sub p l end-sub Variable Parameters (
Palv=Pst+Pplcap P sub a l v end-sub equals cap P sub s t end-sub plus cap P sub p l end-sub Pressure-Volume (PV) Loop Shapes