Table VI.
NPV parameters; we suggest start: Inspiratory pressure of -20, Expiratory pressure from 0 to 5, I:E Ratio from 1:1 to 1:2, back up frequency: set frequency at 2-4 breaths above patient’s own spontaneous rate.
| Negative pressure ventilation (Negavent) | |||
|---|---|---|---|
| Mode | T (timed) | ST (spontaneous/timed) | Syncro (syncrhronized) |
| Inspiratory pressure | Da -5 a -90 hPa | Da -5 a -90 hPa | Da -5 a -90 hPa |
| Expiratory pressure | Da +25 a -25 hPa | Da +25 a -25 hPa | Da +25 a -25 hPa |
| Back-up frequency | 5-60 bpm | 5-60 bpm | 5-60 bpm |
| I/E ratio | 1.0:9.9-9.9:1.0 | 1.0:9.9-9.9:1.0 | 1.0:9.9-9.9:1.0 |
| Trigger inspiratory (nasal cannula) | na | 1;9 | 1;9 |
| Trigger espiratory (nasal cannula) | na | 1;9 | na |