Patent ID: 7966065

Claim:
An active implantable medical device for one of cardiac stimulation, resynchronization and defibrillation, comprising: means for applying during a single cardiac cycle at least one of an atrioventricular (AV) delay between an atrial event and a consecutive ventricular stimulation and an interventricular (VV) delay between two ventricular stimulations; sensor means for delivering over one cardiac cycle at least two hemodynamic parameters correlated to different intervals of time representative of a succession of a systolic phase and a diastolic phase; means for adjusting the AV delay and/or the VV delay according to said at least two hemodynamic parameters; and means, operating dynamically and repeatedly over several cardiac cycles, for: determining said at least two hemodynamic parameters, checking for a match of said at least two hemodynamic parameters with at least one predetermined criterion, and in case of no match, readjusting in response at least one of the AV delay and the VV delay, wherein said at least one predetermined criterion is selected from among the group consisting of: a comparison of the left ventricular pre-ejection interval LPEI to a maximum threshold; a comparison of the diastolic filling time FT to a minimum threshold, a comparison of the ratio between a left ventricular pre-ejection interval LPEI and a left ventricular ejection time LVET to a maximum threshold, and a comparison of the filling time FT to a minimum threshold.