Key result
Radiofrequency catheter ablation within a persistent left superior vena cava successfully eliminated both atrial tachycardia and atrial fibrillation without requiring trans-septal puncture.
Case Report (n=1)
No
Catheter ablation within a persistent left superior vena cava can successfully eliminate atrial tachycardia and atrial fibrillation without requiring trans-septal puncture.
May support ablation within persistent left superior vena cava in select cases; hypothesis-generating and should not yet change practice.
Atrial tachycardia (AT) and atrial fibrillation (AF) were observed in a 21-year old male who had a history of patch closure for an atrial septal defect (ASD) at the age of 5 and a persistent left superior vena cava (LSVC). During electrophysiologic study, atrial extrastimuli reproducibly induced AT which spontaneously terminated or changed into AF. Electroanatomical mapping revealed focal AT arising from the floor of the proximal LSVC. Radio- frequency applications within LSVC targeted to the earliest activation site of AT as well as the complex fractionated potential eliminated both AT and AF without trans-septal puncture.
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Tsutsui et al. (2010) conducted a case report in Atrial tachycardia and atrial fibrillation (n=1). Radiofrequency catheter ablation was evaluated on Elimination of atrial tachycardia and atrial fibrillation. Radiofrequency catheter ablation within a persistent left superior vena cava successfully eliminated both atrial tachycardia and atrial fibrillation without requiring trans-septal puncture.