Patent ID: 8423140

Claim:
A method of operating an implanted cardiac rhythm management system in a patient, the method comprising: applying an electrical stimulus to the patient's heart at a first set of pacing parameters including an LRL setting; acquiring a CVP signal from a pressure sensor implanted in a coronary vein of the patient; calculating a baseline CV-EDP value from the CVP signal corresponding to a first interval; monitoring average CV-EDP values over a predetermined time interval subsequent to the first interval; comparing each of average CV-EDP values to the baseline CV-EDP value; determining a difference (ΔCV-EDP) between at least one of the average CV-EDP values and the baseline average CV-EDP value automatically increasing the LRL setting in response to said difference (ΔCV-EDP) between at least one of the average CV-EDP values and the baseline average CV-EDP value exceeding a predetermined threshold; and subsequently automatically reducing the LRL setting upon detecting a predetermined event.