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. 2014 Aug 11;9(8):e103045. doi: 10.1371/journal.pone.0103045

Table 2. Lung function and ventilation parameters Inline graphic SD during study period.

Stage I II III IV V VI
Time period, min 0–15 15–20 20–35 35–40 40–55 55–60
Peep, cmH2O 0 5 0 5 0 5
FI o 2, % 21 21 100 100 21 21
VInline graphic, ml/kg bw 10.1Inline graphic1.6 9.9Inline graphic1.7 10.3Inline graphic1.8 10.0Inline graphic1.7 9.9Inline graphic1.5 9.9Inline graphic1.7
PInline graphic, cmH2O 21Inline graphic6 23Inline graphic5 20Inline graphic4 23Inline graphic5 20Inline graphic5 23Inline graphic5
PInline graphic, cmH2O 16Inline graphic5 20Inline graphic4 15Inline graphic4 19Inline graphic4 16Inline graphic4 20Inline graphic4
Crs, ml/cmH2O 26.4Inline graphic4.2 27.0Inline graphic4.5 28.4Inline graphic4.8 25.7Inline graphic4.0 28.2Inline graphic4.2 27.1Inline graphic4.0
Sa o 2, % 95Inline graphic3 97Inline graphic3 98Inline graphic4 98Inline graphic2 97Inline graphic2 96Inline graphic3

Peep, positive end-expiratory pressure; FI o 2, fraction of O2 in inspired gas; VInline graphic, tidal volume; bw, body weight; Ppeak, peak airway pressure; Pplat, inspiratory plateau airway pressure; Crs, respiratory system compliance; Sa o 2, saturation of O2.