Junctional tachycardia

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.

File:Double tachycardia with captures.png

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.

References

↑ Template:DorlandsDict
↑ "Junctional Rhythm: Overview - eMedicine". Retrieved 2008-12-21.
↑ Srivathsan K, Gami AS, Barrett R, Monahan K, Packer DL, Asirvatham SJ (2008). "Differentiating atrioventricular nodal reentrant tachycardia from junctional tachycardia: novel application of the delta H-A interval". J. Cardiovasc. Electrophysiol. 19 (1): 1–6. doi:10.1111/j.1540-8167.2007.00961.x. PMID 17916156. Unknown parameter |month= ignored (help)

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[1] Template:DorlandsDict

[urlJunctional_Rhythm:_Overview_-_eMedicine-2] "Junctional Rhythm: Overview - eMedicine". Retrieved 2008-12-21.

[pmid17916156-3] Srivathsan K, Gami AS, Barrett R, Monahan K, Packer DL, Asirvatham SJ (2008). "Differentiating atrioventricular nodal reentrant tachycardia from junctional tachycardia: novel application of the delta H-A interval". J. Cardiovasc. Electrophysiol. 19 (1): 1–6. doi:10.1111/j.1540-8167.2007.00961.x. PMID 17916156. Unknown parameter |month= ignored (help)

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[2]

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Junctional tachycardia

See also

References

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