User Manual Part 1

3-6
TACHYARRHYTHMIA DETECTION
VENTRICULAR DETECTION
• AFib R ate Thresh old ––program to Off (for Onset/Stability detection
enhancement suite)
• Atrial Tachyarrhythmia Discrimination––program to Off (for Rhythm ID
detection enhancement suite)
• Brady Mode––program to Off, VVI, or VVI(R)
• Atrial Rate EGM––do not select the atrial trace
NOTE: An atrial EP test should not be performed if the atrial lead is
programmed to Off.
VENTRICULAR DETECTION
Ventricular detection consists of the following components:
• Initial ventricular detection
• Reconfirmation/committed shock
• Redetection and post-shock detection
Initial ventricular detection criteria consist of the programmable parameters
Rate and Duration. The detection criteria may also include one of the following
two detection enhancement suites, which may be used during initial and
post-shock ventricular detection to add specificity beyond Rate and Duration.
• Onset/Stability
•RhythmID
The pulse generator initiates ventricular therapy when it determines that
detection is met. Ventricular detection is met when all of the following occur:
• A ventricular zone’s detection window becomes and remains satisfied
throughout Duration
• The ventricular zone’s Duration expires
• A higher ventricular zone’s detection window is not satisfied
• Detection enhancements (if programmed to On) indicate therapy
• The last detected interval is in the ve n tricu lar zone
If the above criteria are not met, therapy is not initiated and the pulse generator
continues to evaluate intervals.
- DRAFT -