Open AccessTransesophageal electrophysiology study in the diagnosis of dual atrioventricular nodal nonreentrant tachycardia
Author(s) -
Chen Jing,
Lin Fan,
Zuo Ping,
Li Shixu,
Lin Li,
Wang Bei,
Yang XiaoYun
Publication year - 2022
Publication title -
annals of noninvasive electrocardiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.494
H-Index - 48
eISSN - 1542-474X
pISSN - 1082-720X
DOI - 10.1111/anec.12845
Subject(s) - medicine , electrophysiology , cardiology , electrophysiology study , tachycardia , intracardiac injection , nodal , ablation , radiofrequency ablation , electrocardiography , atrioventricular node , electrical conduction system of the heart , sinus tachycardia , catheter ablation
“Double fire” is generally characterized by 1:2 atrioventricular conduction of sinus beats traveling down fast and slow pathways that result in double ventricular response. When this phenomenon repeats rapidly, dual atrioventricular nodal nonreentrant tachycardia (DAVNNT) occurs. We report a case of an irregular tachycardia with a comprehensive record that includes an electrocardiogram, a transesophageal electrophysiology study, and an intracardiac electrophysiology study. This is the first report of transesophageal electrophysiology study in the diagnosis of DAVNNT. A diagnosis of DAVNNT was deduced, and the patient was successfully treated with radiofrequency ablation of the slow pathway.