Queensland Cardiovascular Group offers a range of electrophysiology, or heart rhythm, procedures, including: Atrial Fibrillation (AF) Cardiac Electrophysiologic Studies (EPS) Cardiac Resynchronisation Therapy (CRT) Catheter Ablation Implantable Cardioverter Defibrillator (ICD) Implantable Loop Recorder (ILR) Pacemaker Implantation