Electronic ventricular pacing at the end of the QRS complex: Is it abnormal?

JOURNAL OF ELECTROCARDIOLOGY（2024）

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摘要

An 82-year-old man with ischemic cardiomyopathy, heart failure with reduced ejection fraction and Medtronic biventricular ICD presented with shortness of breath. His ECG is presented with shortness of breath. ECG shows atrial sensed, electronic ventricular pacing. At the end of each QRS complex there is another pacemaker stimulus. This represents typical case of cardiac contractility modulation therapy and not pacemaker malfunction,

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关键词

Cardiac contractility modulation,Electrocardiogram,Heart failure,Permanent pacemaker

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