VENTILATION PATTERN FOR HEMODYNAMIC PARAMETER DETERMINATION DURING MECHANICAL VENTILATION

摘要

A method for changing the effective ventilation of a mechanically ventilated subject to enable or carry out non-invasive determination of hemodynamic parameters is disclosed. The method includes a step of ventilating the subject using a ventilation pattern comprising at least one phase of increased ventilation and at least one phase of decreased ventilation, wherein the phase of decreased ventilation comprises at least one prolonged breath including a respiratory pause (IRP). The respiratory pause is initiated when the lung pressure (P_alv) of the subject is between a minimum lung pressure and a maximum lung pressure of the subject during the prolonged breath.