AV-Knoten-Reentry-Tachykardie
نویسندگان
چکیده
منابع مشابه
Radiofrequency catheter ablation of AV nodal reentry: the anterior approach.
The ability to cure atrioventricular (AV) nodal reentry with radiofrequency catheter ablation with preservation of antegrade conduction represents a significant clinical advance. It also provides an opportunity to better understand the pathophysiology of this fascinating arrhythmia. Two techniques have been developed for ablation of AV nodal reentry. The first to be described used lesions made ...
متن کاملLongitudinal dissociation within the posterior AV nodal input of the rabbit: a substrate for AV nodal reentry.
BACKGROUND Longitudinal dissociation of an anatomic pathway into 2 electrophysiologically distinct pathways has been hypothesized as a basis for localized AV nodal reentry and supraventricular arrhythmias. METHODS AND RESULTS Extracellular bipolar and intracellular microelectrodes were used to record activation in the superfused rabbit AV junction. A subset of rabbit hearts (n=19 of 72) demon...
متن کاملManifest and concealed reentry. A mechanism of AV nodal Wenckebach phenomenon.
The mechanism of the AV nodal Wenckebach phenomenon was studied in 25 dogs by multiple atrial and His bundle electrogram (HBE) recordings. During ventricular stimulation with 1:1 retrograde conduction, the interval from the stimulus artifact to the retrograde His deflection (S-H interval) remained constant. Decreasing the cycle length of stimulation (CLS) resulted in retrograde AV nodal Wenckeb...
متن کاملAtrioventricular (AV) nodal reentry associated with 2:1 infra-His conduction block during tachycardia in a patient with AV nodal triple pathways.
We report a patient with atrioventricular (AV) nodal reentry in which a 2:1 infra-His conduction block was demonstrated during tachycardia. The electrocardiogram (ECG) at the time of attack showed two types of supraventricular tachycardias. The first type was a narrow QRS tachycardia associated with 1:1 AV conduction at a rate of 170 beats/minute. The second type was a narrow QRS associated wit...
متن کاملFocus, reentry, or "focal" reentry?
THE QUESTION WHETHER tachyarrhythmias are caused by enhanced impulse formation (“focus”) or by reentrant excitation (“reentry”) has been the subject of debate for more than a century. In 1887 McWilliam (12) was the first to suggest that disturbances in impulse propagation could be responsible for fibrillation, and he clearly envisaged the possibility that myocardial fibers could be reexcited as...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Praxis
سال: 2013
ISSN: 1661-8157,1661-8165
DOI: 10.1024/1661-8157/a001452