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Table 3 Neuroventilatory drive and work of breathing parameters

From: High-flow nasal cannula oxygen therapy decreases postextubation neuroventilatory drive and work of breathing in patients with chronic obstructive pulmonary disease

 

HFNC1

Conventional O2

HFNC2

EAdiPEAK (μV)

15.4 ± 6.4

23.6 ± 10.5a,b

15.2 ± 6.4

EAdiPTP (μV/s)

13.7 ± 6.5

21.1 ± 11.8a,b

12.1 ± 5.2

EAdiSLOPE

18.6 ± 6.5

24 ± 14.7a,b

17.6 ± 10.2

PTPDI/b (cmH2O/s)

6.7 ± 2.7

9.9 ± 3.1a,b

6.7 ± 2.8

PTPDI/min (cmH2O/s/min)

135 ± 60

211 ± 70a,b

132 ± 56

  1. Data are expressed as mean ± standard deviation
  2. Conventional O2 conventional low flow oxygen therapy through a nonocclusive face mask, EAdiPEAK diaphragm electrical activity peak, EAdiPTP EAdi deflection inspiratory area, EAdiSLOPE EAdi slope from the beginning of inspiration to EAdiPEAK, HFNC high-flow nasal cannula oxygen therapy, PTPDI/b inspiratory trans-diaphragmatic pressure-time product per breath, PTPDI/min inspiratory trans-diaphragmatic pressure-time product per minute
  3. a Different from HFNC1, ANOVA, with Bonferroni correction
  4. b Different from HFNC2, ANOVA, with Bonferroni correction
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Critical Care

ISSN: 1364-8535