• Critical care medicine · Mar 1985

    Comparative Study

    Conventional and high-frequency ventilation in dogs with bronchopleural fistula.

    • U H Sjostrand, R B Smith, B H Hoff, L Bunegin, and E Wilson.
    • Crit. Care Med. 1985 Mar 1;13(3):191-3.

    AbstractSeven anesthetized dogs with bronchopleural fistulas were subjected to a sequence of continuous positive-pressure ventilation (CPPV), volume-controlled high-frequency positive-pressure ventilation (HFPPV), and high-frequency vibratory ventilation (HFVV). Adequate short-term ventilation and oxygenation were possible with all three ventilatory modes. During HFPPV and HFVV, PaCO2 was unchanged, but hypercarbia developed during CPPV. PaO2 decreased during each mode of ventilation, but HFPPV maintained PaO2 at a sufficient and constant level during the 30-min test period. HFPPV was the most efficient technique with respect to delivery of minute ventilation, the relation between fistula flow and delivered ventilation, and maintenance of both ventilation and oxygenation.

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