what does an implantable cardioverter-defibrillator help
What is an implantable cardiac defibrillator? An implantable cardiac defibrillator (ICD, or implantable cardioverter defibrillator) is an internal shocking device that provides immediate therapy to a life-threatening arrhythmia (heart beating too quickly) via a jolt of electricity. It can also act as a pacemaker if the heart is beating too slow.