Table 2. Ventilatory Variables

All values are mean ± SD.

*P < 0.001.

†P < 0.05.

APRV = airway pressure release ventilation; ATC = automatic tube compensation; RR = respiratory rate; V^E= minute ventilation; V^T= tidal volume; V̇^max.i= maximum inspiratory flow; V̇^max.e= maximum expiratory flow; T^I= inspiratory time; T^E= expiratory time; P^aw.ee= end-expiratory airway pressure; P^aw.mean= mean airway pressure; P^aw.insp= mean inspiratory airway pressure; P^aw.max= mean of maximum airway pressures; P^aw.min= mean of minimum airway pressures; P^tr.ee= end-expiratory tracheal pressure; P^tr.mean= mean tracheal pressure; P^tr.insp= mean inspiratory tracheal pressure; P^tr.max= mean of maximum tracheal pressures; P^tr.min= mean of minimum tracheal pressures; ΔP^tr= tracheal pressure amplitude; ΔP^es= esophageal pressure amplitude; Paco²= arterial carbon dioxide tension.