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Table 1 Respiratory mechanics data at PEEP 5 and 16 cmH2O

From: Airway opening pressure in an obese ARDS patient: just the start of airway recruitment

 

PEEP 5 cmH2O

PEEP 16 cmH2O

PIP, cmH2O

33

33

Pplat, cmH2O

29

29

PEEPTOT, cmH2O

15

18

PEEPI, cmH2O

10

2

ΔP, cmH2O

14

11

VT, mL

300

300

Pes,ei, cmH2O

25

25

Pes,ee, cmH2O

20

20

CTOT, mL/cmH2O

21

27

Cw, mL/cmH2O

60

60

Clung, mL/cmH2O

33

50

Lung volume,ee, mL

713

730

Lung volume,ei, mL

995

1011

ΔEELV, mL

–

16

  1. Abbreviations: Clung lung compliance, CTOT Respiratory system compliance (total), Cw chest wall compliance (chest wall), EELV End-expiratory lung volume, Lung volume, ee End-expiratory lung volume, Lung volume, ei End-inspiratory lung volume, PEEPI Intrinsic PEEP, PEEPTOT Total PEEP, PIP Peak inspiratory pressure, Pplat Plateau pressure, ∆P Driving pressure, Pes,ee End-expiratory esophageal pressure, Pes,ei End-inspiratory esophageal pressure, VT Tidal volume
  2. Gas content volumes were calculated from computed tomography (CT) numbers analyzed from -1000 Hounsfield unit (HU) to 0 HU in each voxel [3]. Lung volume was calculated using the following formula: Gas content volume = SUM (-CT number / 1000 * voxel volume)