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Annals of Intensive Care

Table 3 Neuro-ventilatory drive and work of breathing parameters

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

 

HF-T 1

Conventional O2

HF-T 2 P

EAdiPEAK (μV)

8.8 ± 4.3

8.9 ± 4.8

9 ± 4.2 0.99

EAdiPTP (μV/s)

7.1 ± 3.6

7.8 ± 4.5

6.9 ± 3.2 0.92

EAdiSLOPE

8.5 ± 4.3

8.7 ± 5.2

9.1 ± 4.4 0.95

PTPmusc/b (cm H2O/s)

7.1 ± 3.9

7.4 ± 4.1

6.9 ± 3.4 0.92

PTPmusc/min (cm H2O/s/min)

130 ± 56

140.7 ± 61

132 ± 53 0.86

  1. Data are expressed as mean ± standard deviation if normally distributed or as median and interquartile range if non-normally distributed
  2. HF-T, high-flow tracheotomy cannula oxygen therapy; conventional O2, conventional low-flow oxygen therapy through a T-piece; EAdiPEAK, diaphragm electrical activity peak; EAdiPTP, EAdi deflection inspiratory area; EAdiSLOPE, EAdi slope from the beginning of inspiration to EAdiPEAK; PTPmusc/b, inspiratory pressure–time product per breath; PTPmusc/min, inspiratory pressure–time product per minute
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