System and method for improved ischemia and acute myocardial infarction detection

A system comprising:

• at least one physiological sensor configured to sense a corresponding physiological signal in a patient;
• a controller configured to derive a corresponding physiological parameter from each sensed signal and to detect an exercise and recovery episode in the patient;
• and
• a housing configured for implantation in the patient, wherein the at least one physiological sensor and the controller are included in the housing, and
• wherein the controller is further configured to:
• collect ST-segment information from a corresponding physiological sensor;
• perform an analysis of heart rate (HR)-ST segment hysteresis over the exercise and recovery episode;
• and
• determine whether the patient is experiencing a particular heart-related condition based on the results of the HR-ST segment hysteresis analysis.

A system comprising:

• means for detecting an exercise and recovery episode in a patient using an implantable medical device (IMD);
• means for performing an analysis of heart rate (HR)-ST segment hysteresis over the exercise and recovery episode using the IMD;
• and
• means for determining whether the patient is experiencing a particular heart-related condition based on the results of the HR-ST segment hysteresis analysis.