Absolute survival after cardiac resynchronization therapy according to baseline QRS duration: a multinational 10-year experience: data from the Multicenter …
M Gasparini, C Leclercq, CM Yu, A Auricchio… - American heart …, 2014 - Elsevier
Background In the major trials of cardiac resynchronization therapy (CRT), the survival
benefit of the therapy, relative to control subjects, increases with QRS duration. In the non-
CRT heart failure population, however, a wide QRS duration is associated with a shorter
survival. Relative survival benefit from a therapy, however, is not synonymous with a longer
absolute survival. We sought to determine whether baseline QRS duration relates to the
absolute survival after CRT. Methods and Results In this prospective, longitudinal …
benefit of the therapy, relative to control subjects, increases with QRS duration. In the non-
CRT heart failure population, however, a wide QRS duration is associated with a shorter
survival. Relative survival benefit from a therapy, however, is not synonymous with a longer
absolute survival. We sought to determine whether baseline QRS duration relates to the
absolute survival after CRT. Methods and Results In this prospective, longitudinal …
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