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Pronunciation: dres′lĕr
Definition: fusion beat interrupting a ventricular tachycardia and producing a normally narrow QRS complex as a result of the fusion of two impulses, one impulse from the ventricular tachycardia and the other from a supraventricular focus; Dressler beats strongly support the diagnosis of ventricular tachycardia by interruption of it.
Examples: glitazone, GI cocktail, etc.
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