The Texas Cardiac Arrhythmia Institute (TCAI) at St David's Medical Center has become the first clinic in the US to use Medtronic’s Affera mapping and ablation system with the Sphere-9 catheter ...

During an ablation, a cardiac electrophysiologist snakes a catheter through a vein or artery, usually in the groin or the wrist, to get to the heart. Inside this tiny tube is a device with a ...