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[Atrioventricular synchrony in patients with pacemaker with VDD mode pacing. A 14-year descriptive study]
A Canabal Berlanga1, M Sánchez Casado, J M Díaz Borrego
1Servicio de Medicina Intensiva, Hospital Virgen de la Salud, Toledo, Spain. alcanabal@telefonica.net
Medicina Intensiva
|March 16, 2010
Summary
VDD mode pacing effectively maintains atrioventricular (AV) synchrony in patients with complete AV block, with high preservation rates. Atrial fibrillation and infrasensing were key factors in losing AV synchrony.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Device Performance
Context:
- Complete atrioventricular (AV) block presents challenges for maintaining cardiac synchrony.
- VDD mode pacing is a therapeutic option for these patients.
- Understanding long-term AV synchrony is crucial for patient management.
Purpose:
- To evaluate the performance of VDD mode pacing in patients with complete AV block.
- To specifically assess the maintenance of atrioventricular (AV) synchrony over time.
- To identify factors contributing to the loss of AV synchrony.
Summary:
- A retrospective study analyzed 95 patients with VDD pacemakers implanted for complete AV block.
- Average AV synchrony was maintained for over 73 months, with 73.3% of patients retaining synchrony at study end.
- The primary reasons for losing AV synchrony were atrial fibrillation and atrial infrasensing.
Impact:
- VDD pacing demonstrates a high capacity for preserving AV synchrony in complete AV block.
- Findings highlight the importance of monitoring for atrial fibrillation and ensuring adequate atrial sensing.
- This data supports VDD pacing as a viable strategy for improving quality of life in affected patients.
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