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Loss of Left Bundle Branch Block following Biventricular Pacing Therapy for Heart Failure: Evidence for Electrical Remodeling?

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Journal of Interventional Cardiac Electrophysiology Aims and scope Submit manuscript

Abstract

Cardiac resynchronization therapy has been proven to improve symptoms and indices of left ventricular function in patients with heart failure and intraventricular conduction delays. We present a case of a patient with New York Association Class III heart failure and left bundle branch block, who received a biventricular pacemaker in order to achieve cardiac resynchronization. Her symptoms improved markedly, as did left ventricular ejection fraction and dimensions. In addition, her intrinsic QRS duration normalized. This may represent a salutory effect of biventricular pacing on electrical remodeling.

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Authors and Affiliations

  1. Department of Medicine, Division of Cardiology, Columbia-Presbyterian Medical Center, Columbia University, New York, USA

    José Dizon, Evelyn Horn, Norma Medina & Hasan Garan

  2. Medtronic Inc., Minneapolis, Minnesota, USA

    John Neglia

Authors
  1. José Dizon
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  2. Evelyn Horn
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  3. John Neglia
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  4. Norma Medina
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  5. Hasan Garan
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Correspondence to José Dizon.

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Dizon, J., Horn, E., Neglia, J. et al. Loss of Left Bundle Branch Block following Biventricular Pacing Therapy for Heart Failure: Evidence for Electrical Remodeling?. J Interv Card Electrophysiol 10, 47–50 (2004). https://doi.org/10.1023/B:JICE.0000011484.61659.b1

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  • DOI: https://doi.org/10.1023/B:JICE.0000011484.61659.b1

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