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Exercise‐Induced Atrial and Ventricular Tachycardias in a Patient with Left Ventricular Noncompaction and Normal Ejection Fraction
Author(s) -
SEETHALA SRIKANTH,
KNOLLMAN FRIEDRICH,
MCNAMARA DENNIS,
SABA SAMIR,
SCHWENDER FRANK,
SCHWARTZMAN DAVID,
NĚMEC JAN
Publication year - 2011
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.1540-8159.2010.02813.x
Subject(s) - medicine , cardiology , catecholaminergic polymorphic ventricular tachycardia , ventricular tachycardia , ejection fraction , tachycardia , left ventricular noncompaction , electrophysiology study , atrial tachycardia , cardiomyopathy , heart failure , catheter ablation , atrial fibrillation , ryanodine receptor 2 , ryanodine receptor , calcium
We report a patient with ventricular and atrial tachycardias reproducibly induced during exercise testing. Atrial tachycardia, but no sustained ventricular tachycardia, was induced during electrophysiological study. Catecholaminergic polymorphic ventricular tachycardia was considered because of normal echocardiogram, family history of sudden death, and polymorphic appearance of some of the nonsustained ventricular tachycardia episodes. However, most episodes of ventricular tachycardia were monomorphic. Cardiac magnetic resonance diagnosed isolated left ventricular noncompaction. (PACE 2011; 34:e94–e97)