The interaction of QRS duration with cardiac magnetic resonance derived scar and mechanical dyssynchrony in systolic heart failure: Implications for cardiac resynchronization therapy

Trials using echocardiographic mechanical dyssynchrony (MD) parameters in narrow QRS patients have shown a negative response to CRT. We hypothesized MD in these patients may relate to myocardial scar rather than electrical dyssynchrony. We determined the prevalence of cardiac magnetic resonance (CMR...

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Bibliographic Details
Published in:International journal of cardiology. Heart & vasculature 2018-03, Vol.18, p.81-85
Main Authors: Jackson, Tom, Amraoui, Sana, Sohal, Manav, Sammut, Eva, Behar, Jonathan M., Claridge, Simon, Webb, Jessica, Sienecwicz, Ben, Razavi, Reza, Rinaldi, Christopher Aldo, Carr-White, Gerald
Format: Article
Language:English
Subjects:
Cardiac magnetic resonance imaging
Cardiac resynchronization therapy
Dyssynchrony
Narrow QRS
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Summary:Trials using echocardiographic mechanical dyssynchrony (MD) parameters in narrow QRS patients have shown a negative response to CRT. We hypothesized MD in these patients may relate to myocardial scar rather than electrical dyssynchrony. We determined the prevalence of cardiac magnetic resonance (CMR) derived measures of MD in 130 systolic heart failure patients with both broad (≥130ms - BQRS) and narrow QRS duration (
ISSN:2352-9067
2352-9067
DOI:10.1016/j.ijcha.2017.11.005