User Manual Part 2

PACING THERAPIES
LEAD CONFIGURATION
5-43
• Dual—used when an LV lead with two electrodes is implanted
• Single—used when an LV lead with only one electrode is implanted
• None—used when an LV lead is not implanted. These pulse generators are
intended for use with an LV lead; however, there may be clinical situations
such as thos e described below in which an LV lead is not used:
– The LV lead cannot be positioned, and a decision is made to temporarily
use the pulse generator without an LV lead (plug the unused LV port).
– The LV lead dislodges to a suboptimal position, and a decision is made
to leave the lead implanted and connected but not use it.
The pulse generator cannot detect whether an LV lead is present or absent.
When None is selected, the Pacing Chamber must be RV only, which will result
in no LV sensing or LV pacing. With this option, the following are unavailable:
• LV electrograms
•LVmarkers
• LV intervals
• SmartDelay optimization
• LV Daily measurements
Any time a change is made to th e electrode configuration, it is important to
verify lead system baseline measurements to ensure optimal functioning.
The programmed selections are reflected in the electrode configuration
illustration on th e programmer screen (Figure 5-16 on page 5-44 ).
- DRAFT -