Effects of intrapulmonary percussive ventilation on airway mucus clearance: A bench model

Figure 3 Percent of distance of mucus movement in the different portion of the endotracheal tube in both simulated intrapulmonary percussive ventilation models: mechanical ventilation (A and B) and spontaneous breathing (C and D). There was an overall statistically significant amount of mucus movement proximally towards the mouth-piece in the spontaneously breathing patient. There was also an overall statistically significant amount of mucus movement distally back towards the lung in the mechanically ventilated model. Statistical significant P values: ^aP < 0.05, ^bP < 0.01, ^eP < 0.001, ^fP < 0.0001. ns: No statistical significance.