[Focus from superior vena cava and atypical atrioventricular nodal reentrant tachycardia in patient with paroxysmal atrial fibrillation--selective RF ablation].

We describe a case of a 34-year-old woman with atrial fibrillation induced by focal frequent tachycardias from superior vena cava and atypical atrioventricular nodal reentrant tachycardia. Selective isolation of SVC and slow pathway RF ablation cured all types of atrial arrhythmias. The slow pathway was localised in the postero-septal mitral anulus and ablated from the left atrium.