Rest phase heart pacing

An at-rest-dedicated, acoustic-cardiography method, utilizing the technique of at-rest, real-time, computer-monitored-and-performed difference minimizing between actual real-time, and available-reference, AC (acoustic cardiographic) values that are based upon at-rest-patient-relevant, acquired and computer-processed heart-sound and/or ECG data involving a pacemaker patient having heart failure and being at risk for fluid overload, for adjusting and controlling the patient's pacemaker's operational (a) pacing rate, (b) pacing intensity, (c) atrio-ventricular delay, and (d) inter-ventricular delay so as to effect pacing in a manner maximally supporting the patient's hemodynamic behavior in a context involving inhibiting real-time at-rest fluid overload, said method comprising

• collecting in a continuum, solely during an at-rest period of the subject pacemaker patient, simultaneously occurring ECG and heart-sound continuum information,
• obtaining, for computer processing, from the collected continuum information at least S3 heart-sound data,
• utilizing the obtained data, and employing at least data averaging, calculating an actual, real-time, acoustic cardiographic (AC) value,
• comparing in real time the calculated, actual, real-time AC value to a pre-established, related, at-rest-period-associated, available reference AC value to detect differences therebetween,
• during the mentioned at-rest period, and in the associated real time, appropriately applying, to the operation of the pacemaker, adjustment-based change control over at least one of the pacemaker's operational (a) pacing rate, (b) pacing intensity, (c) atrio-ventricular delay, and (d) inter-ventricular delay so as to minimize the detected AC-value differences, and
• by said applying, effecting pacing by the pacemaker in a manner maximally supporting the patient's hemodynamic behavior through inhibiting fluid overload.