Patent ID: 7792582

Claim:
An active implantable medical device for pacing, resynchronization, defibrillation and/or cardioversion, or an active implant intended to diagnose a cardiac rhythm disorder, comprising: means for measuring a predominantly physiologic corporeal parameter and providing a physiologic signal representative thereof; means for measuring a predominantly physical corporeal parameter and providing a physical signal representative thereof; means for discriminating a patient status of a patient between rest phases and activity phases, operating in response to said physiologic signal and said physical signal, means for providing a status index corresponding to the patient status; memory for memorizing the physiologic signal, the physical signal and the status index; and means for analyzing the patient status, responsive to the physiologic signal, the physical signal and the status index, wherein said means for analysis comprises: first means for providing characteristic values as a function of time for the physical signal during the activity phases of the patient, the physiologic signal during the activity phases of the patient and/or the physiologic signal during the rest phases of the patient, second means for determining a plurality of remarkable dates from the characteristic values, the plurality of remarkable dates defining endpoints of a plurality of characteristic periods and time period between two successive remarkable dates defining a characteristic period of the plurality of characteristic periods, third means for allocating a specific index of specific indices of the patient status respectively to each characteristic period of the plurality of characteristic periods, wherein the specific index is a numerical value indicating improvement, degradation, or stability of the patient status of each characteristic period with respect to the patient status of the immediately preceding characteristic period, and fourth means for combining one or more said specific indices into a composite index.