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Evolution of P wave characteristics after pacemaker implantation.
J Snoeck1, H Decoster, M Verherstraeten
1Department of Cardiology, University of Antwerp, Edegem, Belgium.
Pacing and Clinical Electrophysiology : PACE
|December 1, 1990
Summary
Single-chamber VVI pacing can lead to atrial disease and left atrial hypertrophy, potentially increasing atrial fibrillation risk compared to DDD pacing.
Area of Science:
- Cardiology
- Electrophysiology
- Cardiac Pacing
Background:
- VVI pacing is a common mode of cardiac pacing.
- Understanding its long-term atrial effects is crucial for patient management.
- Atrial health is linked to overall cardiovascular outcomes.
Purpose of the Study:
- To investigate the long-term impact of VVI pacing on atrial structure and function.
- To compare atrial changes between VVI and DDD pacing.
- To assess the association between VVI pacing and atrial fibrillation development.
Main Methods:
- Analysis of P wave characteristics in 285 patients undergoing VVI pacing.
- Evaluation of left and right atrial disease progression.
- Comparison of VVI pacing outcomes with DDD pacing data.
- Monitoring for the incidence of atrial fibrillation.
Main Results:
- VVI pacing demonstrated significant long-term effects on atrial electrophysiology.
- Evidence of left and right atrial disease was observed.
- Left atrial hypertrophy evolved in a subset of patients.
- Atrial fibrillation progression was noted with VVI pacing.
Conclusions:
- VVI pacing can induce detrimental atrial remodeling, including hypertrophy.
- These changes may predispose patients to atrial fibrillation.
- DDD pacing may offer a more favorable atrial profile compared to VVI pacing.