Facilitating pulmonary and systemic hemodynamics

A method for measuring atrial stretch in a subject with a sensing and monitoring system based on one or more hemodynamic parameters, the system comprising one or more sensors and one or more hardware processors, the method comprising:

• generating, with the one or more external photoplethysmography (PPG) sensors, output signals, during ventilation of the subject, conveying information related to hemodynamic activity in the subject;
• determining, with the one or more hardware processors, the one or more hemodynamic parameters based on the output signals;
• determining, with the one or more hardware processors, a change in the atrial stretch indicative of an overload of a right and/or left atrium in the subject during ventilation based on the on the one or more determined hemodynamic parameters;
• and
• providing an output for adjusting, based on a determination that an overload of the right and/or left atrium of the subject has occurred, ventilation pressure provided by a ventilation support system.

A sensing and monitoring system configured to measure atrial stretch in a subject based on one or more hemodynamic parameters, the system comprising:

• external means for generating output signals, during ventilation of the subject, conveying information related to hemodynamic activity in the subject;
• means for determining the one or more hemodynamic parameters based on the output signals;
• and
• means for determining a change in the atrial stretch indicative of an overload of a right and/or left atrium in the subject during ventilation based on the on the one or more determined hemodynamic parameters;
• and
• means for providing an output for adjusting, based on a determination that an overload of the right and/or left atrium of the subject has occurred, ventilation pressure provided by a ventilation support system.