GENEVA--(BUSINESS WIRE)--Endosense, a Swiss medical technology company focused on improving the efficacy, safety and reproducibility of catheter ablation for the treatment of cardiac arrhythmias, has announced it has enrolled the first patients in EFFICAS I, the first study of the EFFICAS series. These patients were enrolled in Na Homolce Hospital, Prague, Czech Republic and treated by Petr Neuzil, M.D. and Vivek Reddy, M.D.