NON-INVASIVE ESTIMATION OF HEMODYNAMIC PARAMETERS DURING MECHANICAL VENTILATION

摘要

The present disclosure relates to a method for non-invasive determination of a hemodynamic parameter of a mechanically ventilated subject (3) based on a point in time (t_hb) of a heartbeat of the subject and an arrival point in time (t_{arr_pulm}) at which a blood pressure pulse caused by the heartbeat reaches the lungs of the subject. The method comprises the steps of measuring (S31) a respiratory pressure and/or a respiratory flow, and determining (S33) the arrival point in time (t_{arr_pulm}) from a change in the measured respiratory pressure and/or the respiratory flow resulting from a change in lung volume caused by the arrival of the blood pressure pulse to the lungs of the subject.