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positive end-expiratory pressure

 

Definition: a technique used in respiratory therapy in which airway pressure greater than atmospheric pressure is achieved at the end of exhalation by introduction of a mechanical impedance to exhalation. So-called “auto-PEEP” occurs when increased time is needed for expiration during mechanical ventilation and the next breath is delivered before the system pressure has dropped to 0; this can be a dangerous phenomenon, which may lead to barotrauma and hypotension.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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