Right-sided Mahaim-mediated tachycardia combined with atypical atrioventricular nodal reentrant tachycardia and left free wall accessory pathway: A case report

Annals of noninvasive electrocardiology: the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

article

Mingxian Chen MD¹  Xuping Li MD¹  Zhihong Wu MD¹  Zhenjiang Liu MD¹  Lin Hu MD¹  Qiming Liu MD¹  Shenghua Zhou MD¹ 

[1] Department of Cardiology, The Second Xiangya Hospital of Central South University

关键词: atypical atrioventricular nodal reentrant tachycardia;    left free wall accessory pathway;    Mahaim fibers;    right-sided;   

DOI  :  10.1111/anec.12964

来源: Wiley

【 摘 要 】

A 37-year-old man was admitted to our hospital with paroxysmal palpitation for half year. A previous electrogram showed a narrow complex tachycardia. Electrophysiologic study (EPS) found a concealed left-sided free wall pathway accessory. In addition, a transseptal approach was used for radiofrequency ablation. After successful ablation, EPS induced a wide complex tachycardia and a narrow complex tachycardia. The wide complex tachycardia was diagnosed as a right-sided Mahaim fiber atriofascicular accessory pathway, and the narrow complex tachycardia was diagnosed as atypical atrioventricular nodal reentrant tachycardia (AVNRT). Then, the right-sided Mahaim fiber atriofascicular accessory pathway and atypical AVNRT were successfully ablated. Herein, we report a rare case of a concealed left-sided accessory pathway combined with a right atriofascicular Mahaim fiber and atypical AVNRT.

【 授权许可】

Unknown