User's Manual

112
Follow-up Options

The IEGM is transmitted together with the atrial and ventricular
markers for sensing, pacing, and sensing within the refractory period.
The IEGM, markers, and surface ECG can be displayed directly on the
programmer screen, printed by the programmer printer, or output to
an external ECG recorder.
IEGM Recordings
Purpose
The recording of intracardiac information over a short period of time
before a tachycardia phase provides valuable details about the
arrhythmogenesis of tachycardia. An IEGM recording can be triggered
by the following events:
• IEGM recording during high ventricular rates
• IEGM recording during mode switching
• IEGM recording during high ventricular rates
• IEGM recording during PMT termination
• IEGM recording triggered by the patient
Description
Every instantaneous recording provides information from the recording
period about the following:
• Type of triggering event
• The time and date of the recording
• Sensed and paced events in the atrium and ventricle including
refractory events
• Duration and filtered amplitude of the sensed events
• Number of measured maximum values within every sensed event
The recordings are stored according to a specific system. The aim is to
take optimal advantage of memory storage space as well as to record a
uniform number of images of every type of event if possible, while
simultaneously taking into consideration the above-mentioned priority
ranking of triggering events. During the next follow-up, the programmer
will automatically indicate that instantaneous recordings of arrhythmia
have been recorded. An appropriate command displays the recording
on the screen.