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Impact of Scar, Viable Myocardium, and Epicardial Fat on Substrate Identification of Ventricular Tachycardia in a Case with Nonischemic Cardiomyopathy
Author(s) -
SASAKI TAKESHI,
MUDD JAMES,
STEENBERGEN CHARLES,
ZVIMAN MENEKHEM M.,
MILLER CHRISTOPHER F.,
NAZARIAN SAMAN
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.1540-8159.2011.03213.x
Subject(s) - medicine , cardiology , ventricular tachycardia , catheter ablation , cardiomyopathy , cardiac magnetic resonance , endocardium , epicardial fat , tachycardia , magnetic resonance imaging , cardiac magnetic resonance imaging , ablation , radiology , heart failure , adipose tissue
A 56‐year‐old man with nonischemic cardiomyopathy underwent orthotopic cardiac transplantation after endocardial and epicardial radiofrequency catheter ablation for pleomorphic ventricular tachycardia. The myocardial substrate and epicardial fat were comprehensively analyzed with three‐dimensional electroanatomic maps, late gadolinium enhanced ex‐vivo cardiac magnetic resonance, and histological examination. The association of scar, viable myocardium, and epicardial fat with endocardial and epicardial electrogram voltage and duration was quantitatively defined. This case provides a unique opportunity to explore the reliability of electrical surrogates of scar in nonischemic cardiomyopathy. (PACE 2012;35:e345–e348)