a Data are given as Median (Interquartile range)
b Comparison between variables, pre-extubation vs 24
hrs. post re-intubation
c Comparison between variables, pre-extubation vs 72
hrs. post re-intubation
Abbreviations: RSS, respiratory severity score;
Fio2, fraction of inspired oxygen; MAP, mean
airway pressure; PIP, peak inspiratory pressure; VI, ventilation index;
Pco2, Partial pressure of carbon dioxide in
arterial or capillary blood; pH, Arterial or capillary blood gas pH
Figure 1: Changes in RSS Changes in VI