Specifications

7 x 9 inches (178 mm x 229 mm)
Medtronic Confidential
Refer to the “Reference man.” category in doc#163256 for Printing
Instructions.
196407001 Rev A
More About Marker Channel
™
Telemetry
NOTE: An interrogation or programming command momentarily inter-
rupts Marker Channel telemetry. If this interruption occurs at the moment a
marker is scheduled, the marker is not displayed.
MARKER Telemetry — A trace of Marker telemetry depicts pacemaker
operation by showing Pace, Sense, and Refractory Sense events as they
occur within the pacemaker. Markers also depict triggered pacing in the
AAT or VVT mode and the beginning and end of a Mode Switch episode
when it occurs. These markers are intended to facilitate interpretation of the
ECG. Each Marker is coded as follows:
Dual Chamber Models Single Chamber Models
AP
= Atrial Pace
VP
= Ventricular Pace
P
= Pace
AS
= Atrial Sense
VS
= Ventricular Sense
S
= Sense
AR
= Atrial Sense
VR
= Ventricular Sense
SR
= Sense during
during refractory during refractory refractory
___________________________________________________________________
TP
= Triggered Pace (AAT or VVT pacing mode)
MS
= Mode Switch Episode (marks the beginning and the end)
ER
= Error Marker (indicates a Marker signal that could not be decoded)
SENSOR Telemetry
—
Sensor telemetry transmits a single type of marker
to show “Sensor-Detect” events. A Sensor-Detect event occurs each time
the detected level of physical activity exceeds the programmed Activity
Threshold setting. Sensor markers thus show response of the Activity
sensor to physical activity of the patient and are intended to facilitate
evaluation of the Activity Threshold setting.
Sensor markers appear on the lower trace display as shown in the example
below. These markers are not annotated with letter codes.
Example Display
Showing Sensor
Markers
While Sensor markers
are displayed, heart rate
is not measured. This
number remains fixed.
5-8 Using the Programmer