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Table 2 Average tidal volume, inspiratory flow, and muscle pressure during the study phases

From: Do spontaneous and mechanical breathing have similar effects on average transpulmonary and alveolar pressure? A clinical crossover study

 

Level of assistance

  
 

CMV

PSV-high

PSV-medium

PSV-low

Overall

p Valuea

Tidal volume, ml

475 ± 121

479 ± 119

461.9 ± 125

449 ± 126

466 ± 118

0.95

Flow, L/min

0.49 ± 0.1

0.47 ± 0.13

0.47 ± 0.12

0.46 ± 0.16

0.47 ± 0.13

0.94

Pmus, cmH2O

0.34 ± 0.48

2.75 ± 1.41

5.42 ± 2.26

8.3 ± 2.59

4.2 ± 3.5

<0.001

  1. CMV controlled mechanical ventilation, PSV pressure support ventilation, Pmus inspiratory muscle pressure
  2. a p values were calculated using repeated measures analysis of variance
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Critical Care

ISSN: 1364-8535