Table 7.
Ventilator | Suggested Initial Settings High Frequency Support |
Suggested Initial Setting Conventional Breaths * |
---|---|---|
3100A | Frequency: 8–10 Hz I:E Ratio: 1:2 or 1:1 Paw: Similar to MV or CPAP Amp/ΔP: 2X Paw; adjust as needed |
Cannot provide conventional breaths; Limited by stiff tubing interface Relative high pressure amplitude |
VDR4 or Bronchotron | Frequency: 5–8 Hz I:E ratio: 1:1 Paw: Similar to MV or CPAP Amp/ΔP: 2X Paw; adjust as needed |
OPTIONAL NIPPV breaths Frequency: 6–12 bpm PIP: as needed to move chest; be careful to not provide excessive VT |
Drager VN500 or Babylog 8000 @ | Frequency: 6–10 Hz I:E Ratio: 1:1 Paw: Similar to MV or CPAP Amp/ΔP: 2X Paw; adjust as needed ΔP may be less than above devices, particularly with Babylog 8000 |
OPTIONAL NIPPV breaths Frequency: 6–12 bpm PIP: 15–20 above Paw; adjust PRN to obtain minimal chest rise |
Other devices: Infant Star 950 Leoni Plus @ Stephanie/Sophie @ Life Pulse Jet |
Comments: Fixed I-time at 18 msec, “synchronized” via Graseby capsule Variable I:E ratio Variable I:E; supports up to 5 kg “On-time” usually set at 20 msec |
Optional NIPPV breaths in all Limited availability & ΔP Probably similar function to Drager HFOV possible in insp & exp phase No clinical or lab studies to date; probably needs longer “on-time” |
We routinely employ convective breaths during HFNV with Percussionaire devices;
Devices are not currently approved for HFV in the US
Device manufacturers: 3100A (Carefusion, San Diego, CA, USA); VDR4/Bronchotron (Percussionaire, Sand Point, ID, USA); Drager VN500/Babylog 8000 (Draeger Medical, Lubeck, Germany); Infant Star 950 (Mallinckrodt, St Louis, MO, USA); Leoni Plus (Heinen+Lowenstein, Bad Ems, Germany); Stephanie/Sophie (Fritz Stephan-GmbH, Gackenbach, Germany); Life Pulse Jet (Bunnell Inc, Salt Lake City, UT, USA)