Mimic Natural Breathing
Variable Pressure Support: How does it work?
Watch the video to learn how Variable Pressure Support works.
Use the chance – the idea of randomized Variable PS
Breathing is a cyclic activity with variable inspiratory and exspiratory phases. It is almost impossible to observe two spontaneous breaths with exactly the same characteristics. This variability of spontaneous breathing is called “noise”.
Controlled mechanical pressure support ventilation is even characterized by fixed support level. To provide a more physiological respiratory pattern and to improve outcome, the option of Variable PS mimics noise of the nature. It generates random variation values in pressure support levels and then applies those values to the pressure support delivered to the patient. Finally, biologically variable ventilation or “noisy pressure support” seems to improve oxygenation and lung function.
What customers say about Variable PS
“Variable Pressure Support ventilation could improve lung mechanics and thus unload the respiratory muscles at the same support level.”
Referring to a case report by Dr. Tommaso Mauri, Milan, Italy 2
Clinical evidence on Variable Pressure Support shows that:
- In the very short term, noisy pressure support ventilation (PSV) proved safe and feasible in patients with acute hypoxemic respiratory failure. Compared to conventional PSV, noisy PSV increased the variability of tidal volumes, and was associated with improved patient-ventilator synchrony, at comparable levels of gas exchange. 5
- Variable ventilation offers a new physiological approach to lung recruitment without the negative hemodynamic effects from markedly elevated intrathoracic pressures. 2