Table 2 Comparisons of related parameter between ZEEP and high PEEP in 30 patients

SpO₂ (%)

95 (91–98)

98 (96–99)

0.008*

HR (bpm)

94 ± 17

94 ± 17

0.783

MAP (mmHg)

87 ± 9

84 ± 10

0.022*

EELI (AU)

1400 (996–1800)

7883 ± 3739

< 0.0001*

GI

0.411 (0.370–0.503)

0.386 (0.350–0.432)

0.131

VQMatch_%

61 (47–70)

71 ± 10

< 0.0001*

DeadSpace_%

18 ± 10

13 ± 10

0.013*

Shunt_%

22 ± 14

16 ± + 11

0.008*

R pixels total

Baseline

142 ± 74

N/A

 Ventral

Baseline

32 (13–95)^¶

N/A

 Dorsal

Baseline

82 (53–128)

N/A

O pixels total

Baseline

48 (0–121)

N/A

 Ventral

Baseline

48 (0–115)^¶

N/A

 Dorsal

Baseline

0 (0–0.25)

N/A

O/R pixels ratio

Baseline

0.45 (0–1.1)

N/A