Hemodynamic monitor with nociception detection

A method for monitoring arterial pressure of a patient and detecting nociception of the patient, the method comprising:

• receiving, by a hemodynamic monitor, sensed hemodynamic data representative of an arterial pressure waveform of the patient;
• performing, by a hardware processor of the hemodynamic monitor, waveform analysis of the sensed hemodynamic data to calculate a plurality of signal measures of the sensed hemodynamic data;
• calculating, by the hardware processor of the hemodynamic monitor, cross-correlational association measurements between each of the signal measures;
• outputting to a user interface the cross-correlational association measurements;
• monitoring the cross-correlational association measurements for bursts in the cross-correlational association measurements;
• and
• detecting a nociception event of the patient when a burst in one or more of the cross-correlational association measurements is outputted to the user interface.

A system for monitoring arterial pressure of a patient and providing a warning to medical personnel of nociception of the patient, the system comprising:

• a hemodynamic sensor that produces hemodynamic data representative of an arterial pressure waveform of the patient;
• a system memory that stores nociception detection software code;
• a user interface that includes a sensory alarm that provides a sensory signal to warn the medical personnel of a nociception event of the patient;
• and
• a hardware processor that is configured to execute the nociception detection software code to:
• perform waveform analysis of the hemodynamic data to determine a plurality of signal measures;
• organize the plurality of signal measures into pairs of signal measures;
• measure a cross-correlational association of each of the pairs of signal measures;
• output to the user interface measurements of cross-correlational association of the pairs of signal measures;
• monitor the measurements of cross-correlational association of the pairs of signal measures for bursts in the measurements of cross-correlational association of the pairs of signal measures;
• and
• invoke a sensory alarm of the user interface indicating a nociception event in response to a burst in one or more of the measurements of cross-correlational association of the pairs of signal measures.