• Medicine · Sep 2024

    Case Reports

    Experience sharing of a case of dual atrioventricular nodal non-reentrant tachycardia: Case report.

    • Yixuan Gao, Yan Wang, Ranzun Zhao, Du Yang, Lei Chen, and Bei Shi.
    • Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China.
    • Medicine (Baltimore). 2024 Sep 6; 103 (36): e36401e36401.

    RationaleTachycardia is a common arrhythmia in clinical practice, and its pathogenesis is mostly related to reentry. However, there are also a few tachycardia that are not related to reentry. Actively clarifying the pathogenesis of these non-reentry related tachycardia is of great significance for its treatment.Patient ConcernsA 55-year-old female patient presented with recurrent palpitations with a fastest heart rate of 180 beats/minute 10 years ago.DiagnosisDual atrioventricular nodal non-reentrant tachycardia (DAVNNT).InterventionsDAVNNT can be cured by radiofrequency ablation of atrioventricular nodal slow path modification.OutcomesThe tachycardia has stopped.ConclusionDAVNNT is a rare disease in clinical practice. Its characteristic is not reentration-related arrhythmias, but the phenomenon of increased heart rate caused by electrical conduction down the double pathway of atrioventricular nodal tract and subsequent pathway. Electrophysiological examination helps to clarify the diagnosis and pathogenesis, and catheter ablation can cure the disease.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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