System and method for detecting fluid responsiveness of a patient

摘要

A system is configured to determine a fluid responsiveness index of a patient from a physiological signal. The system may include a sensor configured to be secured to an anatomical portion of the patient, and a monitor operatively connected to the sensor. The sensor is configured to sense a physiological characteristic of the patient. The monitor is configured to receive a physiological signal from the sensor. The monitor may include an index-determining module configured to determine the fluid responsiveness index through formation of a ratio of one or both of amplitude or frequency modulation of the physiological signal to baseline modulation of the physiological signal.

主权项

1. A medical monitor for determining a fluid responsiveness index of a subject, the monitor comprising:
an electrical input to receive a physiological signal from a sensor; a processor configured to:
determine a value indicative of fluid responsiveness based on modulations of the physiological signal;determine a value indicative of changes in vascular tone of the subject based on one or more metrics of the physiological signal; anddetermine a fluid responsiveness index of the subject based on the value indicative of fluid responsiveness and the value indicative of changes in vascular tone.