User Manual Part 3

POST IMPLANT INFORMATION
POST IMPLANT FEATURES
10-3
2. Perform pacing thresholds and lead impedance tests, and intrinsic
amplitude measurements.
3. Print and review the Quick Notes report, and retain it in your files for future
reference.
4. For episodes of interest, review the Arrhythmia Logbook screen and print
episode d etails and stored electrogram information.
5. It is important to clear the therapy counters so that at the next follow-up
session the most recent episode data will be displayed.
CAUTION: Verify with a conversion test that the patient’s tachyarrhythmias
can be detected and terminated by the pulse generator system if the patient’s
status has changed or parameters have been reprogrammed.
POST IMPLANT FEATURES
Sensitivity Adjustment
The Sensitivity Adjustment feature allows you to shift the atrial sensing range to
make it less sensitive (i.e., a larger signal would be required for the device to
detect). It allows shifting the ventricular sensing range to make it less or more
sensitive. W hile the Nominal setting is p rima rily indicated for both atrial and
ventricular sensing, an adjustment can be made if, in a rare situation, atrial or
ventricular oversensing/undersens ing has been observed post-implant (i.e.,
inhibition of bradycardia pacing or inappropriate tachy therapy).
WARNING: Left ventricular lead dislodgment to a position near the atria can
result in atrial oversensing or left ventricular pacing inhibition.
Should it become necessary to adjust the sensing range in a chamber,
always choose the setting that allows the greatest sensitivity, but resolves
oversensing/undersensing:
• To reduce oversensing, program the sensitivity to a higher value.
• To reduce undersensing, program the sensitivity to a lower value.
After any change to sensitivity, evaluate for appropriate sensing for both
bradycardia pacing and tachycardia detection .
- DRAFT -