For VILI what matters is a tidal volume in a ventilatable lung. Tidal strain ≥ 1.5 and total stress around 20 cmH2O in man are possible thresholds. The stress risers allow to reach the threshold locally and a moltiplication of pressure is nearly 2. PEEP does not produce energy load and its positive effects may be due to the decraesed tidal volume.
How to prevent harm with a mechanical ventilator / L. Gattinoni. ((Intervento presentato al 5. convegno Critical Care London Meeting tenutosi a Londra nel 2015.
How to prevent harm with a mechanical ventilator
L. Gattinoni
2014
Abstract
For VILI what matters is a tidal volume in a ventilatable lung. Tidal strain ≥ 1.5 and total stress around 20 cmH2O in man are possible thresholds. The stress risers allow to reach the threshold locally and a moltiplication of pressure is nearly 2. PEEP does not produce energy load and its positive effects may be due to the decraesed tidal volume.
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