Revue française des maladies respiratoires
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This study points out that in acute respiratory distress syndrome, the positive end-expiratory pressure (PEEP) had in every case the same action on functional residual capacity and static lung compliance. However its results on PaO2, PaCO2 and circulation are often different from patient to patient according also to the different levels of PEEP. The level of optimal PEEP is that which opens the largest number of alveoli; it is better defined by the value of PaO2 on 100% oxygen than by static compliance.
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[Optimal positive and expiratory pressure in adult respiratory distress syndrome (author's transl)].
We defined a new optimal positive end expiratory pressure (PEEP) in the adult respiratory distress syndrome (ARDS). The optimal PEEP is the one which allows to obtain a PaO2 greater than or equal to 400 mmHg and/or an intrapulmonary shunt less than or equal to 15 p. cent, the cardiac output being held constant. 14 cases of ARDS have been treated by this method with encouraging results. The earlier optimal PEEP was applied, the more effective it was.