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Slow Conduction within Lateral Myocardial Scar and Response to Cardiac Resynchronization Therapy
Author(s) -
COMBES NICOLAS,
COMBES STÉPHANE,
HAUSMAN PIERRE,
ALBENQUE JEAN PAUL,
BOVEDA SERGE,
MARIJON ELOI
Publication year - 2009
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.1540-8159.2009.02517.x
Subject(s) - medicine , cardiac resynchronization therapy , cardiology , ventricle , heart failure , lead (geology) , scar tissue , electrical conduction system of the heart , electrocardiography , surgery , ejection fraction , geomorphology , geology
Cardiac resynchronization therapy (CRT) improves symptoms and survival in some selected heart failure patients. However, around 30% of patients still do not respond to CRT. In these patients, methodological approach of any potential cause of nonresponse should be reviewed. We describe the case of limited left ventricle (LV) myocardium capture by LV lead during biventricular pacing secondary to a slow conduction from LV lead impulse, located in a scar zone, and the benefit of interventricular delay optimization in this setting. This case emphasizes the interest of considering 12‐lead electrocardiogram during management of patients with CRT.