9/19/2023 0 Comments Dead space ventilationHFOV is a way to reduce maximum pressure, reduce tidal volume and reopen those alveoli, improving oxygenation. We still don’t know to what extent the different factors damage the lungs, but high pressures (barotrauma), shear stress (large tidal volumes) and high inspired oxygen levels are all culprits. In severe lung disease invasive, high pressure ventilation can be very damaging, and actually end up worsening the lung condition. In short: when a child or infant can no longer move enough air in and out of their lungs to maintain gas homeostasis, for whatever reason, this is our cue to step in with some form of mechanical ventilation (see this earlier post for the basics).Īll forms of mechanical ventilation are of course unphysiological, uncomfortable and potentially damaging to the lungs themselves. High frequency oscillatory ventilation (HFOV) is an alternative method of mechanical ventilation which can help a patient out in specific circumstances, and can be used as a ‘lung protective strategy’ in the management of some severe lung conditions. Does the thought of high frequency ventilation make you shake with fear? In this article, Shri Alurkar, one of the Nottingham PICU Consultants explains when to use it, what it does and how to turn the knobs.
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