Endotracheal tube, by the venturi effect, reduces the efficacy of increasing inlet pressure in improving pendelluft
Fig 3
The relationship between the pressure drop across and flow rate through the endotracheal tube.
The gray line shows the pressure drop curve based on previous studies. The black dots show the pressure drop obtained in our simulation, and the black line shows the approximate curve. The simulation values were close to the values of established studies under general flow rate conditions.