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Patient-initiated autonomous pacemaker tachycardia.
Pacing and Clinical Electrophysiology : PACE
|November 1, 1984
Summary
Complex pacemakers can create unexpected rhythms like sustained autonomous pacemaker tachycardia. This occurs when the device
Area of Science:
- Cardiology
- Biomedical Engineering
Background:
- Modern pacemakers offer numerous programmable parameter combinations.
- Complex timing interactions can lead to unanticipated cardiac rhythms.
Observation:
- A specific rhythm, termed sustained autonomous pacemaker tachycardia, was observed.
- This tachycardia involves atrial and ventricular pacing at the maximum tracking rate with a shortened AV interval.
Findings:
- Sustained autonomous pacemaker tachycardia requires the maximum tracking rate interval to exceed the atrial escape interval.
- The tachycardia persists until device reprogramming or a specific ventricular event.
Implications:
- This finding highlights potential risks with complex pacemaker programming.
- Understanding these rhythms is crucial for patient safety and device optimization.