Author: Clinical Experts Group, Hamilton Medical
Date of first publication: 07.11.2019
When using INTELLiVENT‑ASV®, how can I increase %MinVol when PetCO2 is low and the CO2 target shift setting is already on the maximum of -20?
In certain patient conditions, the arterial partial pressure of CO2 (PaCO2) obtained by an arterial blood gas analysis can be much higher than the end‑tidal partial pressure of CO2 (PetCO2) derived by capnography. Typically this can be observed whenever the patient suffers a ventilation perfusion (V/Q) mismatch; for example, due to a severe ARDS, a pulmonary embolism or hypovolemic shock.
In cases where the patient’s PetCO2 is below the PetCO2 target zone over a period of time, the ventilation controller will maintain the minimum minute volume of 70% in INTELLiVENT‑ASV.
If you want to decrease the PaCO2 in patient conditions where a V/Q mismatch is present, it is not necessary to change the mode.
Proceed as shown in Figure 1 below.
Relevant software: HAMILTON‑G5/S1 ‑ v2.6x; HAMILTON‑C3 ‑ v2.0x; HAMILTON‑C6 ‑ v1.0x
