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Sustained Dissociated Irregular Tachycardia in Two Pulmonary Veins after Radiofrequency Ablation of Atrial Fibrillation

A 64-year-old woman underwent radiofrequency ablation of atrial fibrillation. After pulmonary vein (PV) isolation, she converted into sinus rhythm. However, irregular PV tachycardia “trapped” in the right and left superior pulmonary vein (RSPV/LSPV) sustained. Fifteen minutes after RSPV isolation, the RSPV tachycardia terminated. However, sustained LSPV tachycardia was still present after one hour. Three months later, a relapse of AF was confirmed and the patient underwent re-ablation. Re-conductance was observed in the RSPV and LSPV.

Credits: Andreas Haeberlin; Hildegard Tanner

Biosense Webster
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Introduction to AFib
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