Terminology and anatomic connections of preexcitation pathways

Old terminology	Proposed or commonly used terminology	Anatomic connections
Kent bundle*	Accessory AV connection or AV bypass tract	Atrium to ventricle
James fiber^¶	Atrionodal bypass tract	Atrium to low AV node
James fiber^¶	Atriofascicular bypass tract	Atrium to bundle of His
Mahaim fiber	Atriofascicular bypass tract	Atrium to bundle branch
	Nodofascicular bypass tract	AV node to bundle branch
	Nodoventricular bypass tract	AV node to ventricular tissue
	Fasciculoventricular bypass tract	Bundle branch to ventricular tissue

AV: atrioventricular.
* These bypass tracts result in delta waves and the Wolff-Parkinson-White syndrome.
¶ These bypass tracts result in the Lown-Ganong-Levine syndrome and enhanced AV nodal conduction.

Graphic 53343 Version 6.0

خرید پکیج

Terminology and anatomic connections of preexcitation pathways