Irregular atrial flutter following pulmonary vein isolation for persistent atrial fibrillation

Journal of Arrhythmia

卷:28

关键词: Atrial flutter;    Atrial fibrillation;    Catheter ablation;    Entrainment;    Electrophysiology;   

DOI  :  10.1016/j.joa.2011.11.004

来源: DOAJ

【 摘 要 】

A 65-year-old man with a history of refractory paroxysmal atrial fibrillation (AF) underwent catheter ablation for persistent AF lasting 2 months. AF was not terminated after complete isolation of the 4 pulmonary veins (PV). Instead, it was transformed to a sustained atrial tachyarrhythmia with beat-to-beat variability in the atrial cycle length. A 12-lead electrocardiogram during tachycardia showed negative flutter-like waves in the inferior leads. Entrainment pacing along the tricuspid annulus confirmed the diagnosis of irregular cavotricuspid isthmus (CTI)-dependent typical atrial flutter (AFL). Linear ablation of the CTI terminated AFL and restored sinus rhythm.

【 授权许可】

Unknown