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Active implantable medical device with AAI/DDD mode switching, in particular pacemaker, with improved control of mode switching in the presence of uncertain ventricular events
Active implantable medical device with AAI/DDD mode switching, in particular pacemaker, with improved control of mode switching in the presence of uncertain ventricular events
The device has atrio-ventricular conduction disorder diagnosis units to determine the appearance of an atrio-ventricular block from a sequence of incorrect auricular events (A), throughout an auricular escape beat interval, and a detection of corresponding ventricular events (R) beyond a safety window. Ventricular event discriminator units detect the occurred ventricular events (r) in the window in the absence of the block detected by the diagnosis units. Mode switching units control conditionally the swing of the device from AAI to DDD mode.
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