Unique self-perpetuating cycle of atrioventricular block and phase IV bundle branch block in a patient with bundle branch reentrant tachycardia.
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.
Fedgchin
Brian
B
Department of Medicine, Division of Cardiovascular Medicine, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA.
Pavri
Behzad B
BB
Greenspon
Arnold J
AJ
Ho
Reginald T
RT
D002037:Bundle-Branch Block / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy*; D017115:Catheter Ablation; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D004599:Electric Stimulation Therapy; D022062:Electrophysiologic Techniques, Cardiac; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy*