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Related Experiment Videos

Ventilatory control after pulmonary resection.

P A Easton, M E Arnup, A de la Rocha

    The American Review of Respiratory Disease
    |October 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

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    Pulmonary resection alters breathing patterns, similar to elastic loading. Post-surgery, patients show changes in breathing dynamics, particularly during elevated ventilation, indicating a need for further study.

    Area of Science:

    • Pulmonary Medicine
    • Respiratory Physiology

    Background:

    • Pulmonary resection reduces lung compliance.
    • Altered compliance may mimic effects of elastic loading on ventilation.

    Purpose of the Study:

    • To evaluate breathing patterns and ventilatory drive post-pulmonary resection.
    • To compare post-resection breathing to responses from elastic loading.

    Main Methods:

    • Assessed breathing patterns and ventilatory drive in 12 patients before and after pulmonary resection (4 segments).
    • Utilized CO2 rebreathing to induce higher minute ventilation.
    • Measured parameters including inspiratory time (Tl), tidal volume, respiratory frequency, and occlusion pressure (P0.1).

    Main Results:

    • Resting ventilation showed a decrease in inspiratory time (Tl).

    Related Experiment Videos

  • Elevated ventilation revealed increased respiratory frequency, decreased tidal volume and Tl, and increased occlusion pressure (P0.1).
  • Ventilation and occlusion pressure responses to CO2 remained unchanged.

    • Conclusions:

    • Pulmonary resection induces breathing pattern changes similar to elastic loading.
    • CO2 rebreathing unmasks these altered breathing patterns post-resection.