Ablation as first-line treatment for asymptomatic atrial fibrillation in the context of conduction disturbances: Case report

Figures

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  Figure 1. Strip from a 14-day monitoring electrocardiogram taken preablation at night, showing a long pause (7.7 seconds) during conversion from sinus rhythm to atrial fibrillation.

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  Figure 2. Eight-minute strips from preablation (top panel) and postablation (bottom panel) 14-day electrocardiogram monitoring, during nighttime, showing the frequency of pauses. Both strips show sinus rhythm with Mobitz type I (Wenckebach) dropped beats. The number of pauses is greatly reduced in the postablation strips.

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  Figure 3. Magnification taken from the preablation electrocardiogram in Figure 2. The red arrows illustrate the progressive prolongation of the PR intervals prior to the dropped beat, indicating Mobitz I (Wenckebach) atrioventricular block.