Conclusions
Pocc, P0.1, and PMI, which are measures of airway pressure obtained from inspiratory and expiratory holds, may all be useful alternatives to esophageal pressure to estimate the magnitude of inspiratory effort in ventilated children. Pocc represents the most promising target, as it has the strongest correlation with ∆Pes for all age groups and modes of ventilation and can be readily measured on nearly all patients.