SYSTEM AND METHOD FOR CHANGING DEVICE PARAMETERS TO CONTROL CARDIAC HEMODYNAMICS IN A PATIENT

摘要

Pacing parameters may be adjusted to increase the cardiac output of a patient's heart while a patient is awake and/or active and the demand placed on the heart may be greatest, and to decrease or hemodynamic efficiency while a patient is at rest so that the heart itself has time to rest before the next period of higher demand for efficiency begins. This may aid in lessening the strain placed on the heart by making the heart work hard when needed such as when the patient is active, and by permitting the heart to “rest” when the patient is relatively inactive.

主权项

1. A method for pacing a heart of a patient, the method comprising:
during a first period of time, pacing the heart to increase the left ventricular contractility to produce an increased cardiac output; and during a second period of time, pacing the heart to decrease the left ventricular contractility relative to the left ventricular contractility achieved during the first period of time to produce a reduced cardiac output.