BIOTRONIK Evia DR, Technical Manual

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118 Evia Technical Manual
This graph provides information related to the amount of Vs
response to atrial sensed events. The information is divided into
5 rate bins and provides the minimum, mean and maximum
Ap-Vs intervals for each rate bin.
The data is also displayed on a graph with the Y axis showing
the range of programmable AV Delay options and the X axis
graph showing heart rate.
The number of successful AV hysteresis scans is provided on
this graph.
8.7 IEGM Snapshots
Evia pulse generators can provide IEGM Snapshots, which are
stored intracardiac events based on programmable triggers for
later display and review via the programmer screen. The
intracardiac events are represented on the programmer screen
by event markers. Recordings may be triggered by the following
events:
•
High atrial rates
•
High ventricular rates
•
Patient activation (by applying a magnet)
•
Mode Switches
Evia pulse generators can be programmed to store an IEGM on
any or all of the events listed above. However, the
programmability of the High Atrial Rate and Mode Switch triggers
are linked such that only one trigger can be activated at a time.
By applying a magnet over the pulse generator for approximately
2 seconds, the current heart rhythm will be instantly recorded.
However, Evia commits the recording to memory only when the
magnet has been removed.