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《老年心脏病学杂志》
>Electrocardiographic and echocardiographic dyssynchrony parameters that might better predict the response to cardiac resynchronization therapy than QRS morphology and duration
Electrocardiographic and echocardiographic dyssynchrony parameters that might better predict the response to cardiac resynchronization therapy than QRS morphology and duration
Cardiac resynchronization therapy(CRT)is an evidence-based effective therapy of symptomatic heart failure with reduced ejection fraction refractory to optimal medical ther-apy and associated with intraventricular conduction disturbance,that results in a significant electrical ventricular dyssynchrony.However,the non-response rate to CRT is still 20%−40%.[1]The potential underlying causes of CRT nonresponse are:(1)suboptimal localization of the left ventricular(LV)electrode,far away from the latest activated LV region.
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