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Epicardial Macroreentrant Ventricular Tachycardia Associated with a Left Ventricular Aneurysm
Author(s) -
YAMADA TAKUMI,
DOPPALAPUDI HARISH,
McELDERRY H. THOMAS,
KAY G. NEAL
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.1540-8159.2010.02863.x
Subject(s) - medicine , cardiology , ventricular tachycardia , catheter ablation , left ventricular aneurysm , aneurysm , ablation , left bundle branch block , right bundle branch block , ventricular aneurysm , coronary artery disease , electrocardiography , heart failure , surgery , myocardial infarction
A 62‐year‐old man with severe coronary artery disease and a left ventricular aneurysm underwent catheter ablation of ventricular tachycardia (VT) with right bundle branch block QRS morphology. Endocardial bipolar voltage mapping with standard threshold settings demonstrated no low‐voltage areas within the aneurysm. Catheter ablation of the epicardial surface of the aneurysm eliminated the VT. Endocardial bipolar voltage mapping with any other settings could not predict the site of the epicardial arrhythmogenic substrate whereas endocardial unipolar voltage mapping could. Endocardial unipolar voltage mapping may be helpful for predicting epicardial arrhythmogenic substrates. (PACE 2012; 35:e13–e16)