Figure 6
From: Diaphragm weakness in mechanically ventilated critically ill patients
Relationship of diaphragm strength to ventilator weaning duration. (A) Duration of mechanical ventilation after measurement of transdiaphragmatic twitch pressure (PdiTw) as a function of the level of PdiTw; each symbol represents data from a single subject. Patients with PdiTw ≥10 cmH2O required significantly shorter times to wean from mechanical ventilation when compared with patients with PdiTw <10 cmH2O (P = 0.016). The time required to wean from mechanical ventilation bore no relationship, however, to (B) the respiratory system (RS) static compliance or (C) the airway resistance.