Can Cardiogenic Oscillations Provide an Estimate of Chest Wall Mechanics?
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Every time the heart beats, it produces a mechanical deformation of the lungs causing small fluctuations of airway pressure and flow called cardiogenic oscillations (CO). CO have been observed on respiratory signals during pulmonary function tests, during relaxed expiration as well as during apnea, as a mean for differentiating central and obstructive apneas1. Finally, we have recently shown that the processing of CO in mouth pressure and airflow can be used as a non-invasive measurement of airway resistance2.
KeywordsContinuous Positive Airway Pressure Chest Wall Heart Sound Peep Level Differential Pressure Transducer
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