User's Manual

93
IEGM Recordings
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When all 20 IEGM memories are full, the device searches for disk
space that is not protected and will record the following:
• The oldest recording for the ventricular rate
• The oldest recording, triggered by magnet application
• The oldest recordings for mode switching, a high atrial rate and
PMT termination
When the maximum number of entries is exceeded, then the oldest
recordings are overwritten (meaning there is a loop memory principle
in place for each recording type). The first recording and the
recordings with the longest duration for each event type are archived
and are available for viewing.
During the follow-up treatment, IEGM recordings can be interrogated
and displayed.
Types of IEGM Recordings
Overview
The different types of IEGM recordings are initiated by the following
events, and you can program their criteria:
1
IEGM recording at a high atrial rate (HAR)
2
IEGM recording during mode switching (MSW)
3
IEGM recording during high ventricular rate (HVR)
4
IEGM recording during PMT termination (PMT)
5
IEGM recording by patient (PA T)
Cylos VR
In VVI(R) mode, only the HVR type of IEGM recording is available. In
AAI(R) mode, only the HAR type of IEGM recording is available.
IEGM Recording during High Ventricular Rates
This type is initiated by high atrial rates and atrial tachycardias.
Recordings at high atrial rates are determined by the following
parameters:
— The atrial detection rate defines how high a rate must be before
atrial tachycardia is considered definite and the recording is
started.