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  • Title: Unique self-perpetuating cycle of atrioventricular block and phase IV bundle branch block in a patient with bundle branch reentrant tachycardia.
    Author: Fedgchin B, Pavri BB, Greenspon AJ, Ho RT.
    Journal: Heart Rhythm; 2004 Oct; 1(4):493-6. PubMed ID: 15851205.
    Abstract:
    Bundle branch reentrant tachycardia (BBRT) is an uncommon form of ventricular tachycardia involving diseased bundle branches. Phase IV bundle branch block also accompanies severe His-Purkinje disease. We present an unusual case of BBRT in a patient who also manifests a unique self-perpetuating cycle of AV block and phase IV left bundle branch block following aortic valve surgery. BBRT was treated successfully by ablation of the right bundle.
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