Why the study?
Does radiofrequency ablation at the medial ostium of the IVC eliminate atrial tachyarrhythmias in a patient with paroxysmal AF arising from this focal source?
Does radiofrequency ablation at the medial ostium of the IVC eliminate atrial tachyarrhythmias in a patient with paroxysmal AF arising from this focal source?
This case report demonstrates that the ostium of the inferior vena cava can be a focal source of paroxysmal atrial fibrillation, which can be successfully treated with targeted radiofrequency ablation.
Caution against routine IVC ostium ablation in paroxysmal AF; single case leaves open its role as focal source.
A patient presented with paroxysmal atrial fibrillation (AF) caused by focal rapid discharges arising from the ostium of the inferior vena cava (IVC). Surface ECG showed typical features of AF and flutter when rapid activation at the IVC ostium was conducted to the right atrium in a 1-to-1 and 2-to-1 fashion, respectively. Discrete radiofrequency energy applications at the medial ostium of the IVC completely eliminated the atrial tachyarrhythmias.
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Yamane et al. (2005) studied this question.
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