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http://dx.doi.org/10.1016/j.hrthm.2006.03.033 | DOI Listing |
JACC Clin Electrophysiol
August 2023
Department of Cardiology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
JACC Case Rep
February 2022
Department of Cardiology, Indiana University School of Medicine, Indianapolis, Indiana, USA.
Fasciculoventricular accessory pathways are rare variants of preexcitation. The differential diagnosis of fasciculoventricular accessory pathways from other preexcitation variants can be challenging. Based on two cases, we discuss the specific electrocardiographic and electrophysiologic features of fasciculoventricular bypass tracts.
View Article and Find Full Text PDFJ Electrocardiol
June 2021
Department of Cardiology, Huashan Hospital Fudan University, 12 Wulumuqizhong Road, Shanghai 200040, China. Electronic address:
A 28 year old female with manifest preexcitation underwent electrophysiology study for intermittent palpitation. During progressively premature atrial extrastimuli, bypass tract was blocked before relative refractory period of AV node, making it unfeasible to observe the change of H-V interval and QRS morphology during decremental nodal conduction. However, dual AV node physiology, presented as a marked increase of A-H interval, occurred when a short-coupled extrastimulus was delivered, followed by a preexcited QRS with an H-V interval identical to that in sinus rhythm.
View Article and Find Full Text PDFJ Electrocardiol
June 2021
Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
Background: Fasciculoventricular (FV) bypass tracts (BTs) are the rarest form of ventricular preexcitation. Although they are not involved in clinically significant reentrant tachycardia, they may cause diagnostic and therapeutic confusion if not properly understood. This study aimed to assess the impact of FV BTs on the diagnosis and treatment of concomitant arrhythmias and cardiac diseases.
View Article and Find Full Text PDF