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Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
06:57

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[Biventricular stimulation for AV block].

R C Funck1, S Kölsch, B Maisch

  • 1Universitätsklinikum Giessen und Marburg, Standort Marburg Klinik für Innere Medizin - Kardiologie, Angiologie und Kardioprävention, Marburg. funck@mailer.uni-marburg.de

Herzschrittmachertherapie & Elektrophysiologie
|March 12, 2008
PubMed
Summary
This summary is machine-generated.

Adverse effects of right ventricular apical pacing are increasingly recognized. Biventricular pacing may offer an alternative for patients with AV block, with ongoing studies to confirm benefits.

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Area of Science:

  • Cardiology
  • Electrophysiology
  • Medical Devices

Background:

  • Right ventricular apical pacing can lead to "iatrogenic desynchronization," negatively impacting cardiac function and patient prognosis.
  • Alternative pacing strategies are sought to mitigate these adverse effects.

Purpose of the Study:

  • To evaluate the potential of biventricular stimulation as a primary pacing strategy in patients with atrioventricular (AV) block.
  • To review current evidence and guidelines regarding biventricular pacing versus traditional right ventricular pacing.

Main Methods:

  • Review of existing literature on pacing strategies and their effects on cardiac structure and function.
  • Discussion of ongoing major prospective studies (BIOPACE, BLOCK-HF) investigating biventricular pacing outcomes.
  • Analysis of current European Society of Cardiology (ESC) and German Cardiac Society (GCS) guidelines.

Main Results:

  • Previous studies with limited patient numbers suggest promising surrogate endpoints for biventricular pacing.
  • Ongoing studies are expected to provide robust, prognostically oriented data.
  • Current guidelines recommend biventricular systems in specific AV block patient populations, even without left bundle branch block.

Conclusions:

  • Biventricular stimulation is a promising alternative to traditional right ventricular pacing in select AV block patients.
  • Further evidence from large-scale studies is anticipated to solidify its role.
  • Current guidelines support consideration of biventricular pacing, including with ICD backup when indicated.