Table 2. Baseline measured physiologic parameters for ventilation with the SAVe I, SAVe II, or Siemens Servo 900C.

	SAVe I(n=6)		SAVe II (n=6)
Variable	Servo	SAVe I	Servo	SAVe II
PaO2, torr	92.5 ± 9.1	92.5 ± 14.1	96.3 ± 3.7	98.5 ± 6.3
PaCO2, torr	37.7 ± 1.8*	27.7 ± 4.2*	38.3 ± 2.9	36.5 ± 3.1
VE, L/min	5.7 ± 1.5†	8.3 ± 0.8†	5.3 ± 1.6	5.1 ± 1.3
Peak airway pressure, cm H2O	16.7 ± 2.1	14.7 ± 3.4	16.9 ± 2.3§	20.5 ± 2.5§
Compliance, ml/cm H2O	21.3 ± 9.0	15.6 ± 5.2	27.8 ± 10.4‡	16.8 ± 3.0‡
PaO2/FIO2 ratio	440.5 ± 43.2	440.5 ± 67.1	458.7 ± 17.5	463.9 ± 24.0
Mean BP, mm Hg	106.5 ± 9.8	99.8 ± 13.9	97.7 ± 10.2	97.7 ± 7.3
Mean pulmonary artery pressure, mm Hg	17.5 ± 3.0	15.6 ± 3.3	15.6 ± 2.6	15.9 ± 2.3
Cardiac Output, L/min	2.47 ± 0.40	2.83 ± 0.60	2.58 ± 0.62	2.79 ± 0.57
PAOP	7.63 ± 0.98+	5.83 ± 0.98+	7.50 ± 1.87	7.42 ± 2.11

Values are mean ± SD. Comparisons are made between Siemens Servo and SAVe ventilator in each group. p>0.05 unless specified.

^*p=0.001

^†p=0.007

^§p=0.02

^‡p=0.048

⁺p=0.01.