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Heart failure: left ventricular dyssynchrony 

Heart failure: left ventricular dyssynchrony
Chapter:
Heart failure: left ventricular dyssynchrony
Author(s):

Jens Uwe Voigt

, Peter Søgaard

, and Emer Joyce

DOI:
10.1093/med/9780198726012.003.0026
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date: 20 July 2019

Echocardiography plays a pivotal role in the management of patients with dilative cardiomyopathy and conduction disease, particularly in the setting of cardiac resynchronization therapy (CRT). Current CRT guidelines recommend the echocardiographic assessment of left ventricular size and function. Furthermore, echocardiography has the potential of analysing regional myocardial mechanics with high temporal resolution and without radiation burden or danger for the patient. Assessment of left ventricular dyssynchrony has therefore become the next challenge. Besides the visual approaches, newer methods of functional imaging such as tissue Doppler and speckle tracking allow the exact quantification of regional myocardial function. This chapter reviews the current status of left ventricular dyssynchrony assessment by echocardiography and introduces emerging techniques which can better link conduction abnormalities and mechanical events and, thus, potentially improve clinical decision-making in this field.

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