Egm; Current Of Injury - Abbott Merlin PSA EX3100 Help Manual

Full-Display Markers
Table 6. Full-display markers
Marker Description
Pulse Amplitude Updated Pulse
Amplitude setting
A. Burst or RV Starting burst
Burst Started stimulation delivery
A. Burst or RV Ending burst
Burst Ended stimulation delivery
Waveform Channel Markers
Table 7. Waveform channel markers
Marker
Signal Amplitude
Measurement
Impedance
Measurement

EGM

EGMs (intracardiac electrograms) show the sensed electrical activity of the heart. The shape and
size of the waveform depend on the available EGM Configuration (page 8) and the Gain setting.
The configurations available are Unfiltered or Sense Amp (narrow band filtered data). The Sense
Amp filtering characteristics of the Merlin™ PSA are designed to match those of Abbott Medical
pulse generators. The default configuration is Unfiltered, and once it's changed, the new
configuration is saved for future sessions.
Select the Adjust Display (page 8) button to select the waveform source and configuration, and
also the sweep speed and the ECG Filter.

Current of Injury

The Current of Injury view shows an unfiltered view of the EGM and an amplitude value measured
from peak-to-peak of the waveform. (The filtered EGM view measures the Sense Amp waveform
from baseline-to-peak.) The peak-to-peak amplitude of the unfiltered EGM is shown in the upper
left corner of the Current of Injury view. The Current of Injury view updates with every sensed
beat.
Use the Plus (+) and Minus (-) buttons to manually set the gain. AutoGain is not available in the
Current of Injury view.
Example
Description
Intrinsic signal amplitude
measurements above the
associated complex
Lead impedance
measurement above the
associated complex
Example
6