Neurally adjusted ventilatory assist vs. pressure support to deliver protective mechanical ventilation in patients with acute respiratory distress syndrome: a randomized crossover trial

Annals of Intensive Care

Table 3 Respiratory variables during the study protocol

Variable	NAVA	PSV	p value
RR (rpm)	24 ± 7	23 ± 7	0.661
V_T/kg (mL/kg)	5.8 ± 1.1	5.6 ± 1.0	0.455
VE (L/min)	8.2 ± 2.5	8.0 ± 2.5	0.431
MAP (cmH₂O)	12.7 ± 2.4	12.5 ± 2.3	0.364
Paw (cmH₂O)	21 ± 3	19 ± 3	0.001
EAdi (µV)	12.9 ± 6.8	11.9 ± 6.9	0.285
EAdi/TIn (µV/s)	19.3 ± 9.4	17.3 ± 8.8	0.156

RR respiratory rate, V_T/kg tidal volume for predicted body weight, VE minute ventilation, MAP mean airway pressure, Paw peak airway pressure, EAdi peak of electrical activity of the diaphragm, EAdi/TIn peak of electrical activity of the diaphragm divided for neural inspiratory time − index of respiratory drive
Data presented as mean ± standard deviation, p value obtained by paired t test