Junctional tachycardia

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Junctional tachycardia is a form of supraventricular tachycardia characterized by involvement of the AV node.[1] It can be contrasted to atrial tachycardia. It is a tachycardia associated with the generation of impulses in a focus in the region of the atrioventricular node.

Junctional tachycardia (rate about 115/min) dissociated from a slightly slower sinus tachycardia (rate about 107/min) producing one form of double tachycardia; pairs of ventricular capture (C) beats (5th, 6th, 19th, and 20th beats); see laddergram.

It can be associated with digitalis toxicity.[2] It may be due to coronary artery disease and conduction system disease.

It can appear similar to atrioventricular nodal reentrant tachycardia.[3]

One form is junctional ectopic tachycardia.

See also[edit]