Skip to main content
Annals of Intensive Care

Table 2 Breathing pattern and gas exchange in different experimental conditions

From: High-flow oxygen therapy in tracheostomized patients at high risk of weaning failure

 

HF-T 1

Conventional O2

HF-T 2

p

RR (breaths/min)

19.4 ± 3.9

20.1 ± 4.3

20.4 ± 5.4

0.94

TiNEUR (s)

1.07 ± 0.21

1.03 ± 0.2

1.02 ± 0.24

0.88

pH

7.51 ± 0.04

7.51 ± 0.04

7.52 ± 0.04

0.76

PaCO2 (mm Hg)

44 ± 9

44 ± 8

43 ± 8

0.93

HCO3− (mEq/L)

33 ± 4.5

33 ± 4

33 ± 4

0.99

PaO2 (mm Hg)

109 ± 27

92 ± 17

111 ± 28

0.09

PaO2/FiO2

219 ± 59

187 ± 50

223 ± 45

0.13

  1. Data are expressed as mean ± standard deviation
  2. HF-T, high-flow tracheotomy cannula oxygen therapy; conventional O2, conventional low-flow oxygen therapy through a T-piece; RR, respiratory rate; TiNEUR, neural inspiratory time; PaCO2, arterial partial carbon dioxide pressure; PaO2, arterial partial oxygen pressure; FiO2, inspiratory oxygen fraction
Back to article page