Comparison of Dynamic Mechanical Power Formula With Geometric Method in Pressure- and Volume-Controlled Ventilation: A Validation Study

Patients received volume-controlled ventilation (VCV) with an inspiratory-to-expiratory (I:E) ratio of 1:2. Mechanical power was calculated geometrically (MPgeo) using ventilator screenshots, and results were compared with dynamic mechanical power (MPdyn) values.

Patients received volume-controlled ventilation (VCV) with an inspiratory-to-expiratory (I:E) ratio of 1:1. MPgeo was computed from ventilator screenshots and compared to MPdyn values to assess agreement.

Patients received pressure-controlled ventilation (PCV) with an I:E ratio of 1:2. Mechanical power was measured using both geometric (MPgeo) and dynamic (MPdyn) methods for validation purposes.

Patients received pressure-controlled ventilation (PCV) with an I:E ratio of 1:1. Geometric mechanical power calculations from ventilator screenshots were compared with MPdyn values for accuracy assessment.