Author: Micha Sam Brickman Raredon; Clark Fisher; Paul Heerdt; Ranjit Deshpande; Steven Nivison; Elaine Fajardo; Shamsuddin Akhtar; Thomas Raredon; Laura E. Niklason
Title: Pressure-Regulated Ventilator Splitting (PReVentS): A COVID-19 Response Paradigm from Yale University Document date: 2020_4_6
ID: mqj071gp_61
Snippet: The converse is true on the expiratory limb of the circuit. For Patient #1, the in-line expiratory PEEP valve would provide 15 cmH2O of PEEP. For Patient #2, the in-line expiratory PEEP valve would provide 5 cmH2O of PEEP. Since the ventilator is set with a PEEP of 0 cmH2O, the total PEEP experienced by each Patient is simply the value set for each in-line expiratory pressure-gated valve. However, if the PEEP on the ventilator were set at a numbe.....
Document: The converse is true on the expiratory limb of the circuit. For Patient #1, the in-line expiratory PEEP valve would provide 15 cmH2O of PEEP. For Patient #2, the in-line expiratory PEEP valve would provide 5 cmH2O of PEEP. Since the ventilator is set with a PEEP of 0 cmH2O, the total PEEP experienced by each Patient is simply the value set for each in-line expiratory pressure-gated valve. However, if the PEEP on the ventilator were set at a number higher than zero -say, at 5 cmH2O -then the PEEP experienced by each patient would be the sum of the ventilator set PEEP and the setting of the pressure-gated valve on the expiratory limb of the patient's circuit. Conversely, on the expiratory limb, the pressure-gated valves provide an effective PEEP of 20 cmH2O for Patient #1, and 5 cmH2O for Patient #2.
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