Fig. 3
From: Simulation of pressure support for spontaneous breathing trials in neonates
Work of breathing and trigger work under pressure support from PS 14 to 0 cmH2O at a respiratory rate of 24/min with 3.0-mm tubes (a) and with 3.5-mm tubes (b). Values for at a respiratory rate of 36/min with 3.0-mm tubes (c) and with 3.5-mm tubes (d). Work of breathing of T-piece breathing and ASL 5000™ alone are also described. Error bars represent standard deviation values. Asterisk denotes that the work of breathing under pressure support is significantly higher than the work of breathing of the ASL 5000™ alone (p < 0.05)