Switch for second-degree atrioventricular block
Tracing
Manufacturer Microport CRM
Device PM
Field SafeR mode
N° 3
Patient
- 62-year-old woman
- Reply DR pacemaker (Microport CRM-Sorin) for sinus dysfunction and paroxysmal AV block
- SafeR algorithm
- Episodes of switch to DDD for second degree AV block (AVB2)
Graph and trace
- Atrial pacing with spontaneous ventricular activation
- Second degree AV block
- After 3 non consecutive dropped atrial pacing, switch to DDD (vertical line)
- Atrial and ventricular pacing
Comments
- This tracing shows an example of switch for second degree AV block (AVB2)
- The device switches to DDD if it senses 3 non consecutive dropped sensed or paced atrial events in the last 12 ventricular cycles
- This parameter is non programmable (no possibility to modify the values 3 or 12)
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