Helpful resources for additional information regarding heart rhythm disorders including atrial fibrillation (Afib) as well as pacemakers and implantable cardiac defibrillators (ICD). Patient Education Atrial Fibrillation What is Atrial Fibrillation (A.Fib)? What is an Arrhythmia? FAQs about Atrial Fibrillation (AFib) Defibrillator (ICD) What is an Implantable Cardioverter Defibrillator (ICD)? Living With Your ICD Pacemaker What is a Pacemaker? Post Implant Instructions Living With Your Pacemaker Arrhythmias Ablation for Arrhythmias Testing What is a Stress Test? Patient Resources Blood Pressure Diary