User's Manual

109
Diagnostic Memory Functions (Statistics)

Pacing Statistics
Ventricular (Pacing) Amplitude Trend
The ventricular (pacing) amplitude trend is a long-term trend that
records values in the range of 0.0 to 10 V with a recording duration of
180 days.
Ventricular Threshold Trend
The ventricular threshold trend is a long-term trend that records values
in the range of 0.0 to 8 V with a recording duration of 180 days.
Ventricular (Pacing) Amplitude Histogram
The frequency with which ventricular pacing occurs in certain ranges –
in the context of the amplitude control (ACC) function – is recorded.
The range between < 0.3 V and > 4.8 V is divided into 16 equidistant
classes. The graphical display shows the percentages of the individual
classes in the form of a bar chart and the total number of events.
ACC Status
The ACC statistics shows the following for the active capture control
(ACC) function:
— The last measured threshold
— Status of the active capture control function
— Indication of the "deactivated" and “high pacing threshold” status
A/V Impedance Trend
In the pacemaker, the atrial and ventricular impedances are measured
every 1.5 hours, and both values are displayed in the A/V impedance
trend in the form of a line chart. The AV impedance trend is a rolling
trend. The values of the A/V impedance trend lie between 0 and 3000
Ohm. The AV impedance trend is possible as the following: