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  • Title: The effect of positive end expiratory pressure on rebreathing and gas dilution in the Ayre's T-piece system--a laboratory study.
    Author: Dobbinson TL, Fawcett ER, Bolton DP.
    Journal: Anaesth Intensive Care; 1978 Feb; 6(1):19-25. PubMed ID: 352189.
    Abstract:
    The effect of positive end expiratory pressure on the function of the Ayre's T-Piece System was studied using a simple lung model. Positive end expiratory pressure did not effect end tial CO2 during "controlled breathing" but caused an increase during "spontaneous breathing" when fresh gas flow was less than 3 times the minute volume. Gas dilution did not occur under any of the test conditions.
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