1008-8 Complex Anatomical Substrates of Right-sided Accessory Fibers with Mahaim-Type Preexcitation
نویسندگان
چکیده
منابع مشابه
Catheter-induced mechanical conduction block of right-sided accessory fibers with Mahaim-type preexcitation to guide radiofrequency ablation.
BACKGROUND Accessory pathways originating at the tricuspid annulus that exhibit decremental antegrade conduction properties (Mahaim-type preexcitation) are amenable to radiofrequency (RF) current catheter ablation. However, a reliable and reproducible strategy for mapping and ablation of these fibers is lacking. METHODS AND RESULTS Eleven patients with preexcited atrioventricular tachycardia ...
متن کاملMahaim-type accessory pathway and right bundle branch electroanatomic delineation
Figure 1 Electroanatomic activation map during RA stimulation (A) before and (B) after MAP ablation. Signals obtained at the ablation catheter located at the free lateral wall are shown. MAP anatomical disposition (yellow dots). Right bundle branch anatomical disposition (blue dots). M =mahaim accessory pathway potential; MAPd = distal ablation catheter recording; MAPp = proximal ablation cathe...
متن کاملElectrophysiologic behaviour of a left sided accessory pathway with decremental (Mahaim-like) properties
The observation of a left sided accessory pathway with decremental properties is rare. We describe the behaviour of one of these pathways which was characterized by the presence of retrograde conduction (not previously reported) and thus inducibility of atrio-ventricular orthodromic reentrant tachycardia.
متن کاملRadiofrequency catheter ablation of right atriofascicular (Mahaim) accessory pathways guided by accessory pathway activation potentials.
BACKGROUND Accessory pathways (APs) exhibiting "Mahaim fiber" physiology (antegrade conduction only, long conduction time, and decremental properties) often connect the lateral right atrium to the right bundle branch (right atriofascicular pathways). Potentials from these pathways have not been recorded previously. The purpose of this study was to determine whether AP activation potentials coul...
متن کاملCryoablation with an 8-mm-Tip Catheter for Right-Sided Accessory Pathways in Children.
BACKGROUND Cryoablation is increasingly utilized in children because of its safety profile. Recently, larger catheter tips have been more widely used to improve long-term success rates. The aim of this study was to assess the safety and efficacy of 8-mm-tip catheters for cryoablation of right-sided accessory pathways (APs) in children. METHODS Electrophysiological procedures were performed us...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1995
ISSN: 0735-1097
DOI: 10.1016/0735-1097(95)92947-4