User's Manual

100
Diagnostic Memory Functions (Statistics)

In the A/V rate trend, the heart rate in ppm is recorded in the upper
chart, and the percentage distribution of the pacing rate is recorded in
the lower chart. The ventricular curve for the heart rate as well as for
the pacing rate is indicated by a thicker line than the atrial curve.
Far-Field Histogram
The frequency of events that fall within the far-field interval is recorded.
The rate range between < 50 and > 190 ppm is divided into 16
equidistant rate classes. The graphical display shows the percentages
of the individual classes in the form of a bar chart and the total
number of events.
The far-field histogram can only be selected for the following pacing
types:
— DDD(R), DDI(R), VDD(R), DDIT(R), VDT(R), VDI(R), DDT(R),
DDT/A(R), DDT/V(R)
—
DDD(R)
+
, DDT/A(R)
+
, DDT/V(R)
+
Valid for
Cylos DR
Intrinsic AV Conduction
Statistics from intrinsic AV conduction help optimize the programmed
AV delay and AV hysteresis. Within a single rate class, the cases of
intrinsic conduction are displayed in relationship to the programmed
AV delays and AV hystereses as a histogram for atrial pace and sense
events. On the left side of a rate class (< 70; 70-90; 90-110; 110-130;
> 130 bpm), instances of intrinsic conduction following atrial pace
events are shown. On the right, we see instances of intrinsic conduction
following atrial sense events. Totals for A
S
V
S
and A
P
V
S
within a specific
rate class are shown on the printout, as are overall totals.