Fig. 3From: Effects of neurally adjusted ventilatory assist on air distribution and dead space in patients with acute exacerbation of chronic obstructive pulmonary diseaseVd/Vt in both PSV and NAVA. The bars represent the mean values and the lines represent the standard deviation. $Significant differences versus NAVA 100%; #significant differences versus NAVA 150%. NAVA neutrally-adjusted ventilator assist, PSV pressure support ventilationBack to article page