Definition: An automatic tachycardia originating in the atrioventricular junction, typically arising in the conduction tissues surrounding the atrioventricular node. A junctional tachycardia tends to be a regular, narrow complex tachycardia and usually occurs during myocardial infarction, after heart surgery, or in digitalis intoxication. The rate may range from 140 to 250 beats per minute. (NCI)
Synonyms (terms occurring on more labels are shown first): junctional tachycardia
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