3.3 Diaphragm ultrasound characteristics (Table2, 3)
The diaphragm excursion (DE) decreased from baseline to the PS period and recovered quickly after extubation even though the values continued to remain lower than the baseline in both the groups. The two groups did not show any significant difference between the diaphragm excursions or in the thickness. The left diaphragm thickening fraction (DTF) was significantly reduced in group 1 as compared to group 2(13.71 % vs 25.26 %, p=0.035) during PSV.