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Table 2 Respiratory parameters during the decremental PEEP steps

From: Bedside measurement of changes in lung impedance to monitor alveolar ventilation in dependent and non-dependent parts by electrical impedance tomography during a positive end-expiratory pressure trial in mechanically ventilated intensive care unit patients

PEEP [cm H2O]   15 10 5 0 Significance between groups
EELV (L) N 2.3 (0.3) 2.2 (0.2) 1.8 (0.2)* 1.5 (0.2)  
  D 1.9 (1.0) 1.6 (1.0)* 1.3 (0.8)* 1.2 (0.6) P = NS
PaO 2 /FiO 2
(kPa)
N 62.3 (1.9) 63.7 (9.4)* 58.3 (13.9) 50.3 (13.8)  
  D 37.9 (10.5) 39.0 (8.6) 33.5(15.2) 26.8 (5.1) P <0.01
Cdyn
(ml/cm H 2 O)
N 38.6 (7.4) 45.0 (4.5) 45.0 (4.6) 41.0 (1.2)  
  D 34.1 (11.0) 37.0 (12.6)* 35.0 (13.3)* 29.0 (7.1) P = NS
  1. Data are presented as median and (where appropriate) interquartile range. N, without lung disorders, D, with lung disorders. PEEP, positive end-expiratory pressure; EELV, end-expiratory lung volume; Cdyn, dynamic compliance. Asterisk represents significance within groups vs. 15 cm H2O.