Gas washout and pressure waveform characteristics of high-frequency oscillation
| Autor: | Michael E. Perry, Nasser Ghaed, Peter W. Blue, Neal B. Kindig |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
Pulmonary Gas Exchange
Oscillation business.industry Respiration Time constant Mechanics Critical Care and Intensive Care Medicine Models Biological Respiration Artificial law.invention Washout (aeronautics) Volume (thermodynamics) Critical frequency Pressure waveform law Ventilation (architecture) Pressure Tidal Volume Humans Medicine business Xenon Radioisotopes Tidal volume |
| Zdroj: | Critical Care Medicine. 12:721-724 |
| ISSN: | 0090-3493 |
| DOI: | 10.1097/00003246-198409000-00007 |
| Popis: | High-frequency oscillation (HFO) minimizes tidal volume. To investigate whether ventilation can proceed when tidal movement (volume) is eliminated, a nondistensible physical model of interconnected chambers was constructed. During HFO, ventilation was related to pressure waveform characteristics recorded within the separate chambers. Ventilation increased up to a critical frequency related to the time constant of the system. Beyond this frequency, ventilation dropped off rapidly. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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