Table 2 Variables in the recruitment maneuver (RM) combined with positive end-expiratory pressure (PEEP).

From: Comparison of the tidal volume by the recruitment maneuver combined with positive end-expiratory pressure for mechanically ventilated children

 

Before RM combined with PEEP

After RM combined with PEEP

P value

Infant group (n = 20)

 VT (mL)

61.8 ± 9.7

80.1 ± 13.9

 < 0.05

 VT/ideal body weight (mL/kg)

9.7 ± 1.5

12.4 ± 2.4

 < 0.05

 HR (bpm)

142.3 ± 13.5

144.7 ± 13.3

 < 0.05

 BP (mmHg)

78.2 ± 12.1/ 41.7 ± 7.0

75.3 ± 10.9 / 38.9 ± 5.1

 < 0.05/0.12

Preschool children group (n = 20)

 VT (mL)

135.8 ± 28.5

164.0 ± 36.9

 < 0.05

 VT/ideal body weight (mL/kg)

9.1 ± 1.4

11.7 ± 2.3

 < 0.05

 HR (bpm)

124.4 ± 15.7

127.2 ± 12.7

0.10

 BP (mmHg)

91.3 ± 8.2 / 42.2 ± 9.7

88.3 ± 8.1 / 40.5 ± 7.8

 < 0.05/0.12

School children group (n = 20)

 VT (mL)

217.7 ± 49.7

246.9 ± 50.1

 < 0.05

 VT/ideal body weight (mL/kg)

8.5 ± 1.3

10.4 ± 1.7

 < 0.05

 HR (bpm)

113.3 ± 18.3

117.4 ± 18.4

 < 0.05

 BP (mmHg)

91.5 ± 6.6 / 46.3 ± 6.7

87.6 ± 8.1 / 43.4 ± 6.6

 < 0.05/ < 0.05

  1. A paired t-test was used to compare the groups for nonparametric data.
  2. All values are expressed as mean ± standard deviation (SD).
  3. VT tidal volume.
  4. Statistical significance was set at p < 0.05.
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