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Idiopathic Premature Ventricular Contractions Arising from the Intraventricular Septum Adjacent to the His Bundle
Author(s) -
YAMADA TAKUMI,
TABEREAUX PAUL B.,
McELDERRY H. T.,
DOPPALAPUDI HARISH,
KAY G. N.
Publication year - 2012
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.2010.02959.x
Subject(s) - medicine , interventricular septum , cardiology , qrs complex , bundle of his , left bundle branch block , right bundle branch block , bundle , radiofrequency catheter ablation , catheter ablation , bundle branch block , radiofrequency ablation , ablation , anatomy , electrocardiography , electrical conduction system of the heart , ventricle , heart failure , materials science , composite material
A 57‐year‐old woman with idiopathic premature ventricular contractions (PVCs) exhibiting a left bundle branch block and left inferior axis QRS morphology underwent electrophysiological testing. Mapping revealed that the earliest ventricular activation times during the PVCs recorded on either side of the interventricular septum were the same and no excellent pace maps were reproduced at these sites. Successful radiofrequency catheter ablation was achieved in the right ventricular septum adjacent to the recording site of the His bundle electrogram. These findings suggested that the origin of this PVC was located in the intraventricular septum rather than the endocardial surface. (PACE 2012; 35:e108–e111)