Manufacturer-neutral teaching model
Device interrogation
Battery voltage2.92 VSynthetic case value
V impedance520 ΩSynthetic case value
Intrinsic R signal6 mVSynthetic case value
Capture threshold1 V / 0.4 msSynthetic case value
PNG
VP = pacing pulse · VS = sensed V signal · VS* = sensed noise · — = missed V signal · × = no capture · R = refractory
EGM and ventricular response are schematic, not diagnostic ECG leads. The ventricular response shows actual model depolarizations.
Show event list
- 1.00 s · VP · Capture
- 2.00 s · VP · Capture
- 3.00 s · VP · Capture
- 4.00 s · VP · Capture
- 5.00 s · VP · Capture
- 6.00 s · VP · Capture
Case question
Which mechanism explains the unmodified starting case?
Synthetic case values, not programming recommendations. Simplified VVI logic with a fixed 250-ms refractory period; no DDD, ICD, battery prediction or manufacturer-specific algorithms. Impedance and battery remain independent case values.