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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