Calculation of respiratory work based on noninvasive estimation of intrathoracic pressure and / or noninvasive estimation of intrathoracic pressure

摘要

A method includes obtaining a first physiological parameter indicative of a non-invasively measured airway pressure of a subject, and a second physiological parameter indicative of a non-invasively measured airflow to the subject's lungs. And estimating a third physiological parameter indicative of the intrathoracic pressure of the subject based on the first and second physiological parameters, and generating a signal indicative of the third physiological parameter. Another method includes obtaining a first physiological parameter indicative of the subject's non-invasively estimated intrathoracic pressure, and a third physiological indication indicative of the non-invasively measured airflow into the subject's lungs. Determining a second physiological parameter indicating the lung volume of the subject based on the parameter; determining a respiratory work based on the first and second physiological parameters; and generating a signal indicative thereof Including the step of.