Fig. 1From: Effects of neurally adjusted ventilatory assist on air distribution and dead space in patients with acute exacerbation of chronic obstructive pulmonary diseaseDiaphragm activity in both PSV and NAVA. The bars represent the mean value 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