30
3.
As needed, use the Snapshot and Real-time Recorder buttons to record
ECG trace information.
The ECG or PSA traces will display on the main screen. Refer to Figure 9 Main
Screen on page 25 for additional main screen information.
ECG Display
When the ECG patient cable is connected to the patient and the Programmer,
the ECG display shows surface ECG signals without PG interrogation.
If ECG information is desired to be reviewed or saved, use the Snapshot or
Real-time Recorder buttons to create a real-time log.
NOTE:
The LATITUDE Programming System can display four surface traces
of up to six limb leads or one chest lead. The top displayed lead will be
annotated with the pacing spike marker if that feature is selected. To display
the pacing spike markers correctly, the electrodes connected to the Lead-II
display trace must be connected to the patient regardless of which lead is
displayed. The Surface Rate will display the ventricular rate.
NOTE:
The ECG functionality of the LATITUDE Programming System is
intended to support diagnostic activities pertaining to implanting, programming,
and monitoring Boston Scientific implantable PGs. The LATITUDE
Programming System is not intended for use as an ECG monitor or general
diagnostic device.
WARNING:
Operation of the LATITUDE Programming System with physiological signals
that are lower than the minimum detectable amplitude may cause inaccurate
results.
ECG Full Screen Display
To expand the ECG display to a full screen, select the Magnify Traces button
on the right side of the trace display area, then use the following screen
buttons to change the values and appearance of the traces (see Figure 10
Magnify Traces Screen (During PG Session) on page 26):
•
Trace Speed – Select the desired speed on the ECG display: 0 (stop), 25,
or 50 mm/s
•
Trace 1, Trace 2, Trace 3, and Trace 4 – Select the lead traces to be
displayed
•
Gain – Select the appropriate value to adjust the surface gain of the traces
that are captured on printouts
•
Calibrate button – Transmits a 1 mV calibration pulse so the user has a
reference point to evaluate amplitudes
•
Baseline button – Forces the trace back to the baseline and is normally
used after a defibrillation shock
•
Enable Surface Filter – Select the check box to minimize noise on the
surface ECG
