RARE MANIFESTATION OF DUAL ATRIOVENTRICULAR NODE PHYSIOLOGY
نویسندگان
چکیده
منابع مشابه
Dual Ventricular Response or 1 : 2 Atrioventricular Conduction in Dual Atrioventricular Nodal Physiology
Dual ventricular response to a single supraventricular impulse is an interesting possibility in the presence of dual atrioventricular nodal physiology. Double His bundle and ventricular responses to a single atrial impulse caused by a simultaneous fast and slow pathway conduction is the hallmark of this condition. One of the earliest descriptions of simultaneous conduction through both atrioven...
متن کاملInterference dissociation in the presence of dual atrioventricular nodal physiology
Introduction Dual atrioventricular nodal physiology (DAVNP) is present in 10% to 35% of the general population and is known to regress with aging. It usually manifests as a critical AH jump on electrophysiologic testing or on surface electrocardiography as a change in PR interval with subsequent tachycardia. Preferential choice of pathway engagement (slow vs fast) is dependent upon refractory p...
متن کاملElectrocardiographic manifestations of dual atrioventricular node conduction during sinus rhythm.
OBJECTIVES The objective of this study was to correlate electrocardiographic (ECG) PR interval changes during normal sinus rhythm with recent observations regarding the anatomy and physiology of the dual, slow and fast atrioventricular (AV) pathways. BACKGROUND The least common manifestation of dual AV conduction is an abrupt PR interval change in the setting of sinus rhythm. Whereas isolated...
متن کاملPhysiology of Atrioventricular Transmission
This paper describes records of the transmembrane action potential of fibers from different parts of the specialized conducting system and electrograms recorded directly from these fibers in situ. On the basis of these records it is possible to describe certain physiologic mechanisms for conduction delay, block, and supernormal conduction. In general, impaired conduction is associated with a re...
متن کاملPhysiology of atrioventricular transmission.
This paper describes records of the transmembrane action potential of fibers from different parts of the specialized conducting system and electrograms recorded directly from these fibers in situ. On the basis of these records it is possible to describe certain physiologic mechanisms for conduction delay, block, and supernormal conduction. In general, impaired conduction is associated with a re...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2014
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(14)60652-5