What are the recommendations for the initial %MinVol settings in Adaptive Support Ventilation (ASV®)?
A logical starting point is setting a %MinVol value that will result in the same minute volume as a previous mode, if applicable.
- For example, the %MinVol could be set as follows:
- Normal patient: 100%
- Chronic hypercapnia patient: 100%
- ARDS patient: 120%
Add 20% if the body temperature exceeds 38.5°C (101.3°F) and 5% per 500 m (1640 ft) above sea level.
If dead space is altered by an artificial airway configuration, such as the use of a heat and moisture exchanging filter (HMEF) or nonstandard tubing, modify the Patient height setting accordingly to take into account the added or removed dead space.
|Normal arterial bloodgas||None||--|
|High PaCO2||Increase %MinVol||Pay attention to inspiratory pressures|
|Low PaCO2||Decrease %MinVol||Pay attention to mean airway pressure and oxygenation status|
|High respiratory drive||Consider increasing %MinVol||Consider sedation, analgesia or other treatments|
|Low Oxygen saturation||None||Consider increasing PEEP and/or Oxygen|
For more information on adjustment of %MinVol in ASV mode, see your Hamilton Medical ventilator’s Operator’s Manual.
The content of this Knowledge Base is intended for use by Hamilton Medical distribution partners for informational purposes only, and should not be copied, distributed or published in any way. While the information contained herein is believed to be accurate, it does not represent an official recommendation from Hamilton Medical AG, nor may it substitute an opinion, assessment or instructions provided by a trained healthcare professional.