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Recurrent atrial electrode displacement complicating a single lead VDD pacing system
B D Walker1, C W Thorburn, D L Kuchar
1Cardiology Department, St. Vincent's Hospital, Darlinghurst, NSW, Australia.
Pacing and Clinical Electrophysiology : PACE
|December 22, 1999
Summary
A rare complication of single-lead VDD pacing involves the atrial bipole migrating into the right ventricle. This led to pacemaker-mediated tachycardia, requiring surgical revisions for lead fixation.
Area of Science:
- Cardiology
- Medical Devices
- Electrophysiology
Background:
- Single-lead VDD pacing is a common technique for cardiac rhythm management.
- Atrial lead placement is crucial for effective VDD pacing function.
Observation:
- An unusual complication of single-lead VDD pacing was observed.
- Recurrent advancement of the atrial bipole into the right ventricle occurred.
Findings:
- The migrated atrial bipole caused symptomatic pacemaker-mediated tachycardia.
- Two revision operations were necessary to secure adequate lead fixation.
Implications:
- This case highlights a potential risk associated with single-lead VDD pacing systems.
- Careful lead placement and monitoring are essential to prevent complications.
- Further research may be needed to optimize lead design and fixation techniques.
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