Table 2.

Alveolar pressure at end-inspiration in the volume-controlled ventilation and pressure-controlled ventilation modes for all the ventilators and simulated scenarios

VCV mode Ventilators ICU	Palv						PCV mode	Palv
	Patient effort	No effort*	Pmus-5cmH2O		Pmus-5cmH2O/+5cmH2O			No effort*	Pmus-5cmH2O		Pmus-5cmH2O/+5cmH2O
	Ventilator RR	zero	15	25	15	25		zero	15	25	15	25
SERVO I	Maximum	26.2	27.3	27.4	31.3	32.7	SERVO I	26.4	27.3	27.2	31.3	31
	Median	26.2	27.3	26.4	31.3	25.5		26.4	27.3	26.4	31.3	26.3
	Minimum	26.2	27.3	22	31.3	22.9		26.4	27.3	24.8	31.3	24.2
ESPRIT	Maximum	24.2	24.7	25.9	29.7	30	ESPRIT	24.1	26.7	25.9	32.1	31.6
	Median	24.2	24.7	24.9	29.7	24.6	24.1	26.7	24.3	32.1	25.9
	Minimum	24.2	24.7	21.3	29.7	23	24.1	26.7	22.5	32.1	24.3
DX 3012	Maximum	25.2	25.5	22.2	30	30.6	DX 3012	26.8	27.4	27.4	31.7	31.8
	Median	25.2	25.5	26.1	30	24.5		26.8	27.4	26.7	31.7	26.6
	Minimum	25.2	25.5	26.9	30	21.9		26.8	27.4	24.6	31.7	23.7
PB 840	Maximum	24.9	25.1	26.1	30.2	30.5	PB 840	24.9	24.9	24.9	30	29.5
	Median	24.9	25.1	24.9	30.2	23.5	24.9	24.9	24	30	25.4
	Minimum	24.9	25.1	20.5	30.2	20.8	24.9	24.9	21.8	30	23.3
SAVINA	Maximum	25	27	26	30	30	SAVINA	26	26	26	30	30
	Median	25	27	25	30	25		26	26	25	30	25
	Minimum	25	27	23	30	23			26	22	30	22
SAVINA AF	Maximum	28	28	30	33	32	-	-	-	-	-
	Median	28	28	28	33	27
	Minimum	28	28	26	33	26

Palv - Alveolar pressure at end-inspiration; VCV - volume-controlled ventilation; ICU - intensive care unit; RR - respiratory rate; Pmus - muscle pressure; PCV - pressure-controlled ventilation.

^*Absence of muscle effort: Pmus = zero. Inspiratory effort: Pmus =-5cmH₂O, Expiratory effort: Pmus = +5cmH₂O. The spontaneous respiratory rate of the patient was set at 20bpm.