Table 3.
Neuro-ventilatory drive and work of breathing parameters
| 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 |
Data are expressed as mean ± standard deviation if normally distributed or as median and interquartile range if non-normally distributed
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