Unique Remapping Study Finds 86% of PVs Remained Electrically Isolated and Notes Physician Learning Curve of Only 10 Cases CardioFocus, Inc., developer of the HeartLight® Endoscopic Ablation System (EAS) for the treatment of atrial fibrillation (AF), announces that a unique study in the journal Heart Rhythm demonstrates high acute success (98%) and durable pulmonary vein (PV) isolation rates achievable with a single, visually-guided HeartLight EAS ablation procedure. To determine durability, the study involved a subsequent diagnostic remapping procedure that found 86% of PVs remained electrically isolated after three months. The multicenter study, authored by Srinivas R. Dukkipati, MD, Mount Sinai School of Medicine, New York, is published in the June 2012 issue.