Active implantable medical devices, such as defibrillators, cardioverters and/or multisite devices, comprising means for determining the average hemodynamic index

摘要

After Initialization (10) the time is checked against a pre-set window (12), the type of any ventricular event is confirmed (14), the frequency confirmed to lie between limits (16), the sensors are confirmed normal (18), a number of stable cycles is confirmed (20). The intercardiac impedance is integrated and the increased area is measured (24) and used with the period to determine the index (28) if the next event is normal (26).